/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/sum_invariant.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 07:47:42,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 07:47:42,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 07:47:42,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 07:47:42,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 07:47:42,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 07:47:42,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 07:47:42,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 07:47:42,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 07:47:42,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 07:47:42,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 07:47:42,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 07:47:42,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 07:47:42,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 07:47:42,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 07:47:42,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 07:47:42,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 07:47:42,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 07:47:42,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 07:47:42,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 07:47:42,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 07:47:42,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 07:47:42,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 07:47:42,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 07:47:42,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 07:47:42,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 07:47:42,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 07:47:42,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 07:47:42,830 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf [2021-03-25 07:47:42,861 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 07:47:42,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 07:47:42,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 07:47:42,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 07:47:42,864 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 07:47:42,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 07:47:42,865 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 07:47:42,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 07:47:42,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 07:47:42,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 07:47:42,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 07:47:42,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 07:47:42,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 07:47:42,866 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 07:47:42,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 07:47:42,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 07:47:42,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 07:47:42,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 07:47:42,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 07:47:42,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 07:47:42,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 07:47:42,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 07:47:42,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 07:47:42,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 07:47:42,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 07:47:42,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 07:47:42,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 07:47:42,868 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 07:47:42,869 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 07:47:42,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 07:47:42,869 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 07:47:43,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 07:47:43,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 07:47:43,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 07:47:43,169 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 07:47:43,169 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 07:47:43,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/sum_invariant.bpl [2021-03-25 07:47:43,171 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/sum_invariant.bpl' [2021-03-25 07:47:43,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 07:47:43,210 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 07:47:43,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 07:47:43,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 07:47:43,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 07:47:43,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:47:43" (1/1) ... [2021-03-25 07:47:43,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:47:43" (1/1) ... [2021-03-25 07:47:43,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 07:47:43,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 07:47:43,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 07:47:43,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 07:47:43,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:47:43" (1/1) ... [2021-03-25 07:47:43,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:47:43" (1/1) ... [2021-03-25 07:47:43,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:47:43" (1/1) ... [2021-03-25 07:47:43,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:47:43" (1/1) ... [2021-03-25 07:47:43,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:47:43" (1/1) ... [2021-03-25 07:47:43,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:47:43" (1/1) ... [2021-03-25 07:47:43,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:47:43" (1/1) ... [2021-03-25 07:47:43,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 07:47:43,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 07:47:43,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 07:47:43,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 07:47:43,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:47:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 07:47:43,301 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 07:47:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 07:47:43,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 07:47:43,303 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-03-25 07:47:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-03-25 07:47:43,303 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-03-25 07:47:43,304 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 07:47:43,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 07:47:43,409 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 07:47:43,410 INFO L202 PluginConnector]: Adding new model sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:47:43 BoogieIcfgContainer [2021-03-25 07:47:43,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 07:47:43,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 07:47:43,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 07:47:43,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 07:47:43,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:47:43" (1/2) ... [2021-03-25 07:47:43,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e41799a and model type sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 07:47:43, skipping insertion in model container [2021-03-25 07:47:43,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:47:43" (2/2) ... [2021-03-25 07:47:43,428 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_invariant.bpl [2021-03-25 07:47:43,432 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 07:47:43,435 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 07:47:43,436 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 07:47:43,459 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,459 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,459 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,460 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,460 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,460 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,461 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,461 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,461 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,461 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,461 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,462 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,462 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,462 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,462 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,463 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,463 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,463 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,464 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,464 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,464 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,464 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,465 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,465 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,467 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,470 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,471 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,472 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:47:43,489 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-25 07:47:43,504 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 07:47:43,521 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 07:47:43,521 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 07:47:43,521 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 07:47:43,521 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 07:47:43,521 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 07:47:43,521 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 07:47:43,521 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 07:47:43,522 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 07:47:43,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 44 transitions, 156 flow [2021-03-25 07:47:43,564 INFO L129 PetriNetUnfolder]: 17/56 cut-off events. [2021-03-25 07:47:43,564 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-25 07:47:43,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 56 events. 17/56 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 140 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 49. Up to 12 conditions per place. [2021-03-25 07:47:43,568 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 44 transitions, 156 flow [2021-03-25 07:47:43,573 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 38 transitions, 136 flow [2021-03-25 07:47:43,574 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:43,582 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 38 transitions, 136 flow [2021-03-25 07:47:43,584 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 38 transitions, 136 flow [2021-03-25 07:47:43,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 38 transitions, 136 flow [2021-03-25 07:47:43,610 INFO L129 PetriNetUnfolder]: 17/54 cut-off events. [2021-03-25 07:47:43,610 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-25 07:47:43,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 54 events. 17/54 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 139 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 49. Up to 12 conditions per place. [2021-03-25 07:47:43,627 INFO L142 LiptonReduction]: Number of co-enabled transitions 528 [2021-03-25 07:47:43,743 INFO L154 LiptonReduction]: Checked pairs total: 450 [2021-03-25 07:47:43,743 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 07:47:43,745 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-03-25 07:47:43,781 INFO L129 PetriNetUnfolder]: 17/45 cut-off events. [2021-03-25 07:47:43,781 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-25 07:47:43,781 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:43,782 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:43,782 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:43,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:43,799 INFO L82 PathProgramCache]: Analyzing trace with hash -2141140642, now seen corresponding path program 1 times [2021-03-25 07:47:43,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:43,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66194295] [2021-03-25 07:47:43,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:43,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:43,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:47:43,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:43,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 07:47:43,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:43,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:47:43,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:43,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66194295] [2021-03-25 07:47:43,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:43,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 07:47:43,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864920209] [2021-03-25 07:47:43,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 07:47:43,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:43,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 07:47:43,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 07:47:43,996 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 52 [2021-03-25 07:47:43,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 30 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:43,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:43,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 52 [2021-03-25 07:47:43,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:44,042 INFO L129 PetriNetUnfolder]: 5/27 cut-off events. [2021-03-25 07:47:44,042 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2021-03-25 07:47:44,043 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 27 events. 5/27 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 7/34 useless extension candidates. Maximal degree in co-relation 32. Up to 6 conditions per place. [2021-03-25 07:47:44,044 INFO L132 encePairwiseOnDemand]: 48/52 looper letters, 1 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2021-03-25 07:47:44,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 94 flow [2021-03-25 07:47:44,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 07:47:44,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 07:47:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 146 transitions. [2021-03-25 07:47:44,061 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9358974358974359 [2021-03-25 07:47:44,061 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 146 transitions. [2021-03-25 07:47:44,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 146 transitions. [2021-03-25 07:47:44,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:44,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 146 transitions. [2021-03-25 07:47:44,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,078 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,079 INFO L185 Difference]: Start difference. First operand has 31 places, 30 transitions, 120 flow. Second operand 3 states and 146 transitions. [2021-03-25 07:47:44,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 94 flow [2021-03-25 07:47:44,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 24 transitions, 66 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-25 07:47:44,093 INFO L241 Difference]: Finished difference. Result has 25 places, 24 transitions, 64 flow [2021-03-25 07:47:44,095 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=25, PETRI_TRANSITIONS=24} [2021-03-25 07:47:44,096 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -6 predicate places. [2021-03-25 07:47:44,097 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:44,097 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 24 transitions, 64 flow [2021-03-25 07:47:44,097 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 24 transitions, 64 flow [2021-03-25 07:47:44,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 24 transitions, 64 flow [2021-03-25 07:47:44,109 INFO L129 PetriNetUnfolder]: 5/27 cut-off events. [2021-03-25 07:47:44,110 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 07:47:44,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 5/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 22. Up to 6 conditions per place. [2021-03-25 07:47:44,112 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 07:47:44,117 INFO L154 LiptonReduction]: Checked pairs total: 102 [2021-03-25 07:47:44,117 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:44,118 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-25 07:47:44,120 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 24 transitions, 64 flow [2021-03-25 07:47:44,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,120 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:44,120 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:44,120 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 07:47:44,121 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:44,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:44,122 INFO L82 PathProgramCache]: Analyzing trace with hash 325226480, now seen corresponding path program 1 times [2021-03-25 07:47:44,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:44,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305172107] [2021-03-25 07:47:44,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:44,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:47:44,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 07:47:44,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:47:44,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:44,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305172107] [2021-03-25 07:47:44,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:44,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 07:47:44,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771256991] [2021-03-25 07:47:44,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 07:47:44,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:44,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 07:47:44,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 07:47:44,189 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 52 [2021-03-25 07:47:44,189 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 24 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:44,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 52 [2021-03-25 07:47:44,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:44,205 INFO L129 PetriNetUnfolder]: 3/24 cut-off events. [2021-03-25 07:47:44,206 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 07:47:44,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 24 events. 3/24 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 1/25 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2021-03-25 07:47:44,206 INFO L132 encePairwiseOnDemand]: 50/52 looper letters, 2 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2021-03-25 07:47:44,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 23 transitions, 67 flow [2021-03-25 07:47:44,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 07:47:44,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 07:47:44,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2021-03-25 07:47:44,208 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9294871794871795 [2021-03-25 07:47:44,208 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 145 transitions. [2021-03-25 07:47:44,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 145 transitions. [2021-03-25 07:47:44,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:44,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 145 transitions. [2021-03-25 07:47:44,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,211 INFO L185 Difference]: Start difference. First operand has 25 places, 24 transitions, 64 flow. Second operand 3 states and 145 transitions. [2021-03-25 07:47:44,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 23 transitions, 67 flow [2021-03-25 07:47:44,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 07:47:44,212 INFO L241 Difference]: Finished difference. Result has 26 places, 23 transitions, 62 flow [2021-03-25 07:47:44,212 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=26, PETRI_TRANSITIONS=23} [2021-03-25 07:47:44,213 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2021-03-25 07:47:44,213 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:44,213 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 23 transitions, 62 flow [2021-03-25 07:47:44,213 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 23 transitions, 62 flow [2021-03-25 07:47:44,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 23 transitions, 62 flow [2021-03-25 07:47:44,217 INFO L129 PetriNetUnfolder]: 3/24 cut-off events. [2021-03-25 07:47:44,218 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 07:47:44,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 24 events. 3/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 24. Up to 4 conditions per place. [2021-03-25 07:47:44,227 INFO L142 LiptonReduction]: Number of co-enabled transitions 136 [2021-03-25 07:47:44,229 INFO L154 LiptonReduction]: Checked pairs total: 92 [2021-03-25 07:47:44,229 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:44,229 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-25 07:47:44,230 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 23 transitions, 62 flow [2021-03-25 07:47:44,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,230 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:44,230 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:44,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 07:47:44,231 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:44,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:44,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1072858812, now seen corresponding path program 1 times [2021-03-25 07:47:44,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:44,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607900668] [2021-03-25 07:47:44,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:44,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,370 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:44,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:44,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:44,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607900668] [2021-03-25 07:47:44,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:44,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:47:44,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578382331] [2021-03-25 07:47:44,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:47:44,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:44,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:47:44,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:47:44,377 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 52 [2021-03-25 07:47:44,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 62 flow. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:44,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 52 [2021-03-25 07:47:44,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:44,575 INFO L129 PetriNetUnfolder]: 278/502 cut-off events. [2021-03-25 07:47:44,575 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 07:47:44,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1046 conditions, 502 events. 278/502 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2238 event pairs, 51 based on Foata normal form. 1/503 useless extension candidates. Maximal degree in co-relation 1022. Up to 312 conditions per place. [2021-03-25 07:47:44,580 INFO L132 encePairwiseOnDemand]: 42/52 looper letters, 21 selfloop transitions, 21 changer transitions 0/51 dead transitions. [2021-03-25 07:47:44,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 51 transitions, 216 flow [2021-03-25 07:47:44,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:47:44,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:47:44,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 218 transitions. [2021-03-25 07:47:44,587 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5989010989010989 [2021-03-25 07:47:44,587 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 218 transitions. [2021-03-25 07:47:44,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 218 transitions. [2021-03-25 07:47:44,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:44,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 218 transitions. [2021-03-25 07:47:44,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 31.142857142857142) internal successors, (218), 7 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 52.0) internal successors, (416), 8 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,591 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 52.0) internal successors, (416), 8 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,591 INFO L185 Difference]: Start difference. First operand has 26 places, 23 transitions, 62 flow. Second operand 7 states and 218 transitions. [2021-03-25 07:47:44,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 51 transitions, 216 flow [2021-03-25 07:47:44,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 51 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 07:47:44,593 INFO L241 Difference]: Finished difference. Result has 36 places, 43 transitions, 190 flow [2021-03-25 07:47:44,594 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=190, PETRI_PLACES=36, PETRI_TRANSITIONS=43} [2021-03-25 07:47:44,594 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2021-03-25 07:47:44,594 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:44,594 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 43 transitions, 190 flow [2021-03-25 07:47:44,595 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 43 transitions, 190 flow [2021-03-25 07:47:44,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 43 transitions, 190 flow [2021-03-25 07:47:44,613 INFO L129 PetriNetUnfolder]: 99/265 cut-off events. [2021-03-25 07:47:44,613 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-25 07:47:44,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 265 events. 99/265 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1486 event pairs, 18 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 561. Up to 74 conditions per place. [2021-03-25 07:47:44,617 INFO L142 LiptonReduction]: Number of co-enabled transitions 260 [2021-03-25 07:47:44,672 INFO L154 LiptonReduction]: Checked pairs total: 36 [2021-03-25 07:47:44,673 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:47:44,673 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-03-25 07:47:44,681 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 43 transitions, 190 flow [2021-03-25 07:47:44,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,681 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:44,681 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:44,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 07:47:44,682 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:44,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:44,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1087179988, now seen corresponding path program 1 times [2021-03-25 07:47:44,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:44,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514372397] [2021-03-25 07:47:44,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:44,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:47:44,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 07:47:44,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:47:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:44,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514372397] [2021-03-25 07:47:44,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:44,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 07:47:44,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993518431] [2021-03-25 07:47:44,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 07:47:44,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:44,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 07:47:44,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 07:47:44,724 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 53 [2021-03-25 07:47:44,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 43 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:44,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 53 [2021-03-25 07:47:44,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:44,745 INFO L129 PetriNetUnfolder]: 89/227 cut-off events. [2021-03-25 07:47:44,746 INFO L130 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2021-03-25 07:47:44,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 227 events. 89/227 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1212 event pairs, 18 based on Foata normal form. 26/243 useless extension candidates. Maximal degree in co-relation 543. Up to 77 conditions per place. [2021-03-25 07:47:44,748 INFO L132 encePairwiseOnDemand]: 50/53 looper letters, 1 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2021-03-25 07:47:44,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 179 flow [2021-03-25 07:47:44,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 07:47:44,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 07:47:44,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2021-03-25 07:47:44,763 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9308176100628931 [2021-03-25 07:47:44,763 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 148 transitions. [2021-03-25 07:47:44,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 148 transitions. [2021-03-25 07:47:44,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:44,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 148 transitions. [2021-03-25 07:47:44,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,766 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,766 INFO L185 Difference]: Start difference. First operand has 36 places, 43 transitions, 190 flow. Second operand 3 states and 148 transitions. [2021-03-25 07:47:44,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 179 flow [2021-03-25 07:47:44,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 38 transitions, 177 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:44,772 INFO L241 Difference]: Finished difference. Result has 38 places, 38 transitions, 175 flow [2021-03-25 07:47:44,772 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2021-03-25 07:47:44,772 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2021-03-25 07:47:44,772 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:44,772 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 38 transitions, 175 flow [2021-03-25 07:47:44,773 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 38 transitions, 175 flow [2021-03-25 07:47:44,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 38 transitions, 175 flow [2021-03-25 07:47:44,791 INFO L129 PetriNetUnfolder]: 88/235 cut-off events. [2021-03-25 07:47:44,791 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-25 07:47:44,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 235 events. 88/235 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1292 event pairs, 18 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 532. Up to 76 conditions per place. [2021-03-25 07:47:44,794 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 07:47:44,801 INFO L154 LiptonReduction]: Checked pairs total: 18 [2021-03-25 07:47:44,801 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:44,801 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-25 07:47:44,802 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 175 flow [2021-03-25 07:47:44,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,802 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:44,802 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:44,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 07:47:44,802 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:44,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:44,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1208908859, now seen corresponding path program 1 times [2021-03-25 07:47:44,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:44,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348206722] [2021-03-25 07:47:44,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:44,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:44,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:44,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:44,920 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:44,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:44,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348206722] [2021-03-25 07:47:44,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:44,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:47:44,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929275587] [2021-03-25 07:47:44,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:47:44,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:44,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:47:44,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:47:44,929 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 53 [2021-03-25 07:47:44,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 175 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:44,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:44,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 53 [2021-03-25 07:47:44,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:45,064 INFO L129 PetriNetUnfolder]: 202/390 cut-off events. [2021-03-25 07:47:45,064 INFO L130 PetriNetUnfolder]: For 198/232 co-relation queries the response was YES. [2021-03-25 07:47:45,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1244 conditions, 390 events. 202/390 cut-off events. For 198/232 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1789 event pairs, 36 based on Foata normal form. 35/425 useless extension candidates. Maximal degree in co-relation 1209. Up to 247 conditions per place. [2021-03-25 07:47:45,067 INFO L132 encePairwiseOnDemand]: 44/53 looper letters, 20 selfloop transitions, 31 changer transitions 0/56 dead transitions. [2021-03-25 07:47:45,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 56 transitions, 352 flow [2021-03-25 07:47:45,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:47:45,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:47:45,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2021-03-25 07:47:45,069 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6145552560646901 [2021-03-25 07:47:45,069 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 228 transitions. [2021-03-25 07:47:45,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 228 transitions. [2021-03-25 07:47:45,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:45,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 228 transitions. [2021-03-25 07:47:45,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,071 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,071 INFO L185 Difference]: Start difference. First operand has 38 places, 38 transitions, 175 flow. Second operand 7 states and 228 transitions. [2021-03-25 07:47:45,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 56 transitions, 352 flow [2021-03-25 07:47:45,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 56 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 07:47:45,075 INFO L241 Difference]: Finished difference. Result has 45 places, 52 transitions, 325 flow [2021-03-25 07:47:45,075 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=325, PETRI_PLACES=45, PETRI_TRANSITIONS=52} [2021-03-25 07:47:45,076 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 14 predicate places. [2021-03-25 07:47:45,076 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:45,076 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 52 transitions, 325 flow [2021-03-25 07:47:45,076 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 52 transitions, 325 flow [2021-03-25 07:47:45,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 52 transitions, 325 flow [2021-03-25 07:47:45,093 INFO L129 PetriNetUnfolder]: 104/268 cut-off events. [2021-03-25 07:47:45,093 INFO L130 PetriNetUnfolder]: For 152/154 co-relation queries the response was YES. [2021-03-25 07:47:45,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 268 events. 104/268 cut-off events. For 152/154 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1543 event pairs, 21 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 841. Up to 97 conditions per place. [2021-03-25 07:47:45,096 INFO L142 LiptonReduction]: Number of co-enabled transitions 186 [2021-03-25 07:47:45,103 INFO L154 LiptonReduction]: Checked pairs total: 72 [2021-03-25 07:47:45,104 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:45,104 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-25 07:47:45,104 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 52 transitions, 325 flow [2021-03-25 07:47:45,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,105 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:45,105 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:45,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 07:47:45,105 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:45,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:45,105 INFO L82 PathProgramCache]: Analyzing trace with hash -210002233, now seen corresponding path program 2 times [2021-03-25 07:47:45,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:45,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936447864] [2021-03-25 07:47:45,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:45,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:45,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,190 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:45,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:45,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936447864] [2021-03-25 07:47:45,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:45,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:47:45,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8872301] [2021-03-25 07:47:45,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:47:45,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:45,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:47:45,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:47:45,199 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 53 [2021-03-25 07:47:45,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 52 transitions, 325 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:45,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 53 [2021-03-25 07:47:45,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:45,333 INFO L129 PetriNetUnfolder]: 211/420 cut-off events. [2021-03-25 07:47:45,333 INFO L130 PetriNetUnfolder]: For 445/459 co-relation queries the response was YES. [2021-03-25 07:47:45,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 420 events. 211/420 cut-off events. For 445/459 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2008 event pairs, 41 based on Foata normal form. 15/435 useless extension candidates. Maximal degree in co-relation 1618. Up to 270 conditions per place. [2021-03-25 07:47:45,338 INFO L132 encePairwiseOnDemand]: 44/53 looper letters, 34 selfloop transitions, 31 changer transitions 0/70 dead transitions. [2021-03-25 07:47:45,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 70 transitions, 547 flow [2021-03-25 07:47:45,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:47:45,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:47:45,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2021-03-25 07:47:45,339 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6145552560646901 [2021-03-25 07:47:45,339 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 228 transitions. [2021-03-25 07:47:45,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 228 transitions. [2021-03-25 07:47:45,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:45,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 228 transitions. [2021-03-25 07:47:45,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,341 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,341 INFO L185 Difference]: Start difference. First operand has 45 places, 52 transitions, 325 flow. Second operand 7 states and 228 transitions. [2021-03-25 07:47:45,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 70 transitions, 547 flow [2021-03-25 07:47:45,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 70 transitions, 513 flow, removed 13 selfloop flow, removed 1 redundant places. [2021-03-25 07:47:45,350 INFO L241 Difference]: Finished difference. Result has 52 places, 66 transitions, 462 flow [2021-03-25 07:47:45,350 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=462, PETRI_PLACES=52, PETRI_TRANSITIONS=66} [2021-03-25 07:47:45,351 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 21 predicate places. [2021-03-25 07:47:45,351 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:45,351 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 66 transitions, 462 flow [2021-03-25 07:47:45,351 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 66 transitions, 462 flow [2021-03-25 07:47:45,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 66 transitions, 462 flow [2021-03-25 07:47:45,369 INFO L129 PetriNetUnfolder]: 145/335 cut-off events. [2021-03-25 07:47:45,370 INFO L130 PetriNetUnfolder]: For 300/312 co-relation queries the response was YES. [2021-03-25 07:47:45,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1179 conditions, 335 events. 145/335 cut-off events. For 300/312 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1912 event pairs, 41 based on Foata normal form. 6/325 useless extension candidates. Maximal degree in co-relation 1158. Up to 133 conditions per place. [2021-03-25 07:47:45,374 INFO L142 LiptonReduction]: Number of co-enabled transitions 216 [2021-03-25 07:47:45,387 INFO L154 LiptonReduction]: Checked pairs total: 81 [2021-03-25 07:47:45,387 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:45,387 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-25 07:47:45,389 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 66 transitions, 462 flow [2021-03-25 07:47:45,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,389 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:45,389 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:45,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 07:47:45,389 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:45,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:45,390 INFO L82 PathProgramCache]: Analyzing trace with hash -800656611, now seen corresponding path program 3 times [2021-03-25 07:47:45,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:45,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692235605] [2021-03-25 07:47:45,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:45,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:45,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,530 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:45,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:45,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692235605] [2021-03-25 07:47:45,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:45,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:47:45,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023713094] [2021-03-25 07:47:45,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:47:45,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:45,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:47:45,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:47:45,534 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 53 [2021-03-25 07:47:45,535 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 66 transitions, 462 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,535 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:45,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 53 [2021-03-25 07:47:45,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:45,638 INFO L129 PetriNetUnfolder]: 227/467 cut-off events. [2021-03-25 07:47:45,638 INFO L130 PetriNetUnfolder]: For 585/608 co-relation queries the response was YES. [2021-03-25 07:47:45,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1975 conditions, 467 events. 227/467 cut-off events. For 585/608 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2359 event pairs, 13 based on Foata normal form. 24/491 useless extension candidates. Maximal degree in co-relation 1660. Up to 356 conditions per place. [2021-03-25 07:47:45,642 INFO L132 encePairwiseOnDemand]: 44/53 looper letters, 61 selfloop transitions, 24 changer transitions 1/91 dead transitions. [2021-03-25 07:47:45,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 91 transitions, 817 flow [2021-03-25 07:47:45,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:47:45,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:47:45,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 198 transitions. [2021-03-25 07:47:45,644 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6226415094339622 [2021-03-25 07:47:45,644 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 198 transitions. [2021-03-25 07:47:45,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 198 transitions. [2021-03-25 07:47:45,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:45,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 198 transitions. [2021-03-25 07:47:45,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 53.0) internal successors, (371), 7 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,646 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 53.0) internal successors, (371), 7 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,646 INFO L185 Difference]: Start difference. First operand has 52 places, 66 transitions, 462 flow. Second operand 6 states and 198 transitions. [2021-03-25 07:47:45,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 91 transitions, 817 flow [2021-03-25 07:47:45,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 91 transitions, 807 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:45,653 INFO L241 Difference]: Finished difference. Result has 61 places, 86 transitions, 726 flow [2021-03-25 07:47:45,654 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=726, PETRI_PLACES=61, PETRI_TRANSITIONS=86} [2021-03-25 07:47:45,654 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 30 predicate places. [2021-03-25 07:47:45,654 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:45,654 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 86 transitions, 726 flow [2021-03-25 07:47:45,655 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 86 transitions, 726 flow [2021-03-25 07:47:45,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 86 transitions, 726 flow [2021-03-25 07:47:45,680 INFO L129 PetriNetUnfolder]: 156/375 cut-off events. [2021-03-25 07:47:45,680 INFO L130 PetriNetUnfolder]: For 612/630 co-relation queries the response was YES. [2021-03-25 07:47:45,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 375 events. 156/375 cut-off events. For 612/630 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2222 event pairs, 24 based on Foata normal form. 4/371 useless extension candidates. Maximal degree in co-relation 1482. Up to 137 conditions per place. [2021-03-25 07:47:45,684 INFO L142 LiptonReduction]: Number of co-enabled transitions 276 [2021-03-25 07:47:45,741 INFO L154 LiptonReduction]: Checked pairs total: 326 [2021-03-25 07:47:45,741 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:47:45,741 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 87 [2021-03-25 07:47:45,742 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 86 transitions, 732 flow [2021-03-25 07:47:45,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,743 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:45,743 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:45,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 07:47:45,743 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:45,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:45,743 INFO L82 PathProgramCache]: Analyzing trace with hash -440483421, now seen corresponding path program 4 times [2021-03-25 07:47:45,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:45,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034585065] [2021-03-25 07:47:45,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:45,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:45,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:45,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:45,828 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:45,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:45,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:45,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034585065] [2021-03-25 07:47:45,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:45,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:47:45,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305565989] [2021-03-25 07:47:45,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:47:45,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:45,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:47:45,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:47:45,834 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 54 [2021-03-25 07:47:45,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 86 transitions, 732 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:45,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 54 [2021-03-25 07:47:45,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:45,963 INFO L129 PetriNetUnfolder]: 236/499 cut-off events. [2021-03-25 07:47:45,964 INFO L130 PetriNetUnfolder]: For 1094/1138 co-relation queries the response was YES. [2021-03-25 07:47:45,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2417 conditions, 499 events. 236/499 cut-off events. For 1094/1138 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2618 event pairs, 22 based on Foata normal form. 42/541 useless extension candidates. Maximal degree in co-relation 2360. Up to 294 conditions per place. [2021-03-25 07:47:45,968 INFO L132 encePairwiseOnDemand]: 45/54 looper letters, 49 selfloop transitions, 50 changer transitions 0/104 dead transitions. [2021-03-25 07:47:45,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 104 transitions, 1060 flow [2021-03-25 07:47:45,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:47:45,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:47:45,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 229 transitions. [2021-03-25 07:47:45,970 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6058201058201058 [2021-03-25 07:47:45,970 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 229 transitions. [2021-03-25 07:47:45,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 229 transitions. [2021-03-25 07:47:45,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:45,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 229 transitions. [2021-03-25 07:47:45,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.714285714285715) internal successors, (229), 7 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 54.0) internal successors, (432), 8 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,973 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 54.0) internal successors, (432), 8 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:45,973 INFO L185 Difference]: Start difference. First operand has 61 places, 86 transitions, 732 flow. Second operand 7 states and 229 transitions. [2021-03-25 07:47:45,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 104 transitions, 1060 flow [2021-03-25 07:47:45,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 104 transitions, 1044 flow, removed 8 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:45,982 INFO L241 Difference]: Finished difference. Result has 69 places, 100 transitions, 979 flow [2021-03-25 07:47:45,983 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=979, PETRI_PLACES=69, PETRI_TRANSITIONS=100} [2021-03-25 07:47:45,983 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 38 predicate places. [2021-03-25 07:47:45,983 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:45,983 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 100 transitions, 979 flow [2021-03-25 07:47:45,983 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 100 transitions, 979 flow [2021-03-25 07:47:45,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 100 transitions, 979 flow [2021-03-25 07:47:46,023 INFO L129 PetriNetUnfolder]: 176/411 cut-off events. [2021-03-25 07:47:46,023 INFO L130 PetriNetUnfolder]: For 989/1014 co-relation queries the response was YES. [2021-03-25 07:47:46,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1906 conditions, 411 events. 176/411 cut-off events. For 989/1014 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2370 event pairs, 19 based on Foata normal form. 5/414 useless extension candidates. Maximal degree in co-relation 1875. Up to 145 conditions per place. [2021-03-25 07:47:46,029 INFO L142 LiptonReduction]: Number of co-enabled transitions 316 [2021-03-25 07:47:46,051 INFO L154 LiptonReduction]: Checked pairs total: 198 [2021-03-25 07:47:46,051 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:46,051 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-25 07:47:46,051 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 100 transitions, 979 flow [2021-03-25 07:47:46,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,052 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:46,052 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:46,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 07:47:46,052 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:46,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:46,053 INFO L82 PathProgramCache]: Analyzing trace with hash 367225700, now seen corresponding path program 1 times [2021-03-25 07:47:46,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:46,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447622797] [2021-03-25 07:47:46,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:46,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:46,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,091 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:46,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:46,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447622797] [2021-03-25 07:47:46,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:46,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 07:47:46,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65963181] [2021-03-25 07:47:46,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 07:47:46,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:46,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 07:47:46,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 07:47:46,096 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2021-03-25 07:47:46,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 100 transitions, 979 flow. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:46,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2021-03-25 07:47:46,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:46,202 INFO L129 PetriNetUnfolder]: 246/512 cut-off events. [2021-03-25 07:47:46,203 INFO L130 PetriNetUnfolder]: For 1413/1445 co-relation queries the response was YES. [2021-03-25 07:47:46,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2791 conditions, 512 events. 246/512 cut-off events. For 1413/1445 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2746 event pairs, 11 based on Foata normal form. 23/535 useless extension candidates. Maximal degree in co-relation 2757. Up to 419 conditions per place. [2021-03-25 07:47:46,208 INFO L132 encePairwiseOnDemand]: 46/54 looper letters, 92 selfloop transitions, 29 changer transitions 1/128 dead transitions. [2021-03-25 07:47:46,208 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 128 transitions, 1511 flow [2021-03-25 07:47:46,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 07:47:46,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 07:47:46,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2021-03-25 07:47:46,210 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2021-03-25 07:47:46,210 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 176 transitions. [2021-03-25 07:47:46,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 176 transitions. [2021-03-25 07:47:46,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:46,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 176 transitions. [2021-03-25 07:47:46,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,212 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,212 INFO L185 Difference]: Start difference. First operand has 69 places, 100 transitions, 979 flow. Second operand 5 states and 176 transitions. [2021-03-25 07:47:46,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 128 transitions, 1511 flow [2021-03-25 07:47:46,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 128 transitions, 1465 flow, removed 23 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:46,228 INFO L241 Difference]: Finished difference. Result has 76 places, 124 transitions, 1337 flow [2021-03-25 07:47:46,229 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1337, PETRI_PLACES=76, PETRI_TRANSITIONS=124} [2021-03-25 07:47:46,229 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 45 predicate places. [2021-03-25 07:47:46,230 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:46,230 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 124 transitions, 1337 flow [2021-03-25 07:47:46,230 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 124 transitions, 1337 flow [2021-03-25 07:47:46,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 124 transitions, 1337 flow [2021-03-25 07:47:46,270 INFO L129 PetriNetUnfolder]: 184/448 cut-off events. [2021-03-25 07:47:46,270 INFO L130 PetriNetUnfolder]: For 1204/1243 co-relation queries the response was YES. [2021-03-25 07:47:46,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2088 conditions, 448 events. 184/448 cut-off events. For 1204/1243 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2736 event pairs, 10 based on Foata normal form. 7/453 useless extension candidates. Maximal degree in co-relation 2052. Up to 146 conditions per place. [2021-03-25 07:47:46,276 INFO L142 LiptonReduction]: Number of co-enabled transitions 362 [2021-03-25 07:47:46,309 INFO L154 LiptonReduction]: Checked pairs total: 252 [2021-03-25 07:47:46,310 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:46,310 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80 [2021-03-25 07:47:46,310 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 124 transitions, 1337 flow [2021-03-25 07:47:46,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,311 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:46,311 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:46,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 07:47:46,311 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:46,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:46,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1350523360, now seen corresponding path program 2 times [2021-03-25 07:47:46,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:46,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087395612] [2021-03-25 07:47:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:46,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:46,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,378 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:46,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:46,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:46,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087395612] [2021-03-25 07:47:46,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:46,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:47:46,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488741000] [2021-03-25 07:47:46,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:47:46,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:46,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:47:46,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:47:46,387 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2021-03-25 07:47:46,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 124 transitions, 1337 flow. Second operand has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 6 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:46,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2021-03-25 07:47:46,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:46,517 INFO L129 PetriNetUnfolder]: 246/521 cut-off events. [2021-03-25 07:47:46,517 INFO L130 PetriNetUnfolder]: For 1615/1661 co-relation queries the response was YES. [2021-03-25 07:47:46,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2898 conditions, 521 events. 246/521 cut-off events. For 1615/1661 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2844 event pairs, 16 based on Foata normal form. 43/564 useless extension candidates. Maximal degree in co-relation 2859. Up to 385 conditions per place. [2021-03-25 07:47:46,522 INFO L132 encePairwiseOnDemand]: 46/54 looper letters, 72 selfloop transitions, 59 changer transitions 1/138 dead transitions. [2021-03-25 07:47:46,522 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 138 transitions, 1710 flow [2021-03-25 07:47:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:47:46,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:47:46,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 208 transitions. [2021-03-25 07:47:46,524 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6419753086419753 [2021-03-25 07:47:46,524 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 208 transitions. [2021-03-25 07:47:46,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 208 transitions. [2021-03-25 07:47:46,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:46,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 208 transitions. [2021-03-25 07:47:46,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 34.666666666666664) internal successors, (208), 6 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 54.0) internal successors, (378), 7 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,526 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 54.0) internal successors, (378), 7 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,526 INFO L185 Difference]: Start difference. First operand has 76 places, 124 transitions, 1337 flow. Second operand 6 states and 208 transitions. [2021-03-25 07:47:46,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 138 transitions, 1710 flow [2021-03-25 07:47:46,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 138 transitions, 1696 flow, removed 7 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:46,541 INFO L241 Difference]: Finished difference. Result has 85 places, 135 transitions, 1643 flow [2021-03-25 07:47:46,542 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=1323, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1643, PETRI_PLACES=85, PETRI_TRANSITIONS=135} [2021-03-25 07:47:46,542 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 54 predicate places. [2021-03-25 07:47:46,542 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:46,542 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 135 transitions, 1643 flow [2021-03-25 07:47:46,542 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 135 transitions, 1643 flow [2021-03-25 07:47:46,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 135 transitions, 1643 flow [2021-03-25 07:47:46,579 INFO L129 PetriNetUnfolder]: 182/463 cut-off events. [2021-03-25 07:47:46,580 INFO L130 PetriNetUnfolder]: For 1567/1605 co-relation queries the response was YES. [2021-03-25 07:47:46,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2354 conditions, 463 events. 182/463 cut-off events. For 1567/1605 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2901 event pairs, 13 based on Foata normal form. 6/467 useless extension candidates. Maximal degree in co-relation 2312. Up to 146 conditions per place. [2021-03-25 07:47:46,585 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-25 07:47:46,640 INFO L154 LiptonReduction]: Checked pairs total: 315 [2021-03-25 07:47:46,641 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:46,641 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 99 [2021-03-25 07:47:46,642 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 135 transitions, 1643 flow [2021-03-25 07:47:46,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 6 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,642 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:46,642 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:46,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 07:47:46,642 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:46,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:46,643 INFO L82 PathProgramCache]: Analyzing trace with hash -2017739679, now seen corresponding path program 5 times [2021-03-25 07:47:46,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:46,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106507578] [2021-03-25 07:47:46,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:46,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:46,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:46,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:46,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:46,737 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:46,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:46,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:46,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106507578] [2021-03-25 07:47:46,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:46,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:47:46,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700490496] [2021-03-25 07:47:46,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:47:46,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:46,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:47:46,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:47:46,742 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 54 [2021-03-25 07:47:46,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 135 transitions, 1643 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,742 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:46,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 54 [2021-03-25 07:47:46,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:46,926 INFO L129 PetriNetUnfolder]: 256/567 cut-off events. [2021-03-25 07:47:46,926 INFO L130 PetriNetUnfolder]: For 2586/2615 co-relation queries the response was YES. [2021-03-25 07:47:46,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3362 conditions, 567 events. 256/567 cut-off events. For 2586/2615 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3228 event pairs, 29 based on Foata normal form. 28/595 useless extension candidates. Maximal degree in co-relation 3279. Up to 296 conditions per place. [2021-03-25 07:47:46,932 INFO L132 encePairwiseOnDemand]: 45/54 looper letters, 61 selfloop transitions, 86 changer transitions 0/152 dead transitions. [2021-03-25 07:47:46,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 152 transitions, 2105 flow [2021-03-25 07:47:46,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:47:46,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:47:46,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 260 transitions. [2021-03-25 07:47:46,934 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6018518518518519 [2021-03-25 07:47:46,934 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 260 transitions. [2021-03-25 07:47:46,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 260 transitions. [2021-03-25 07:47:46,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:46,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 260 transitions. [2021-03-25 07:47:46,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 54.0) internal successors, (486), 9 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,936 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 54.0) internal successors, (486), 9 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:46,936 INFO L185 Difference]: Start difference. First operand has 85 places, 135 transitions, 1643 flow. Second operand 8 states and 260 transitions. [2021-03-25 07:47:46,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 152 transitions, 2105 flow [2021-03-25 07:47:46,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 152 transitions, 2093 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:46,955 INFO L241 Difference]: Finished difference. Result has 93 places, 148 transitions, 2002 flow [2021-03-25 07:47:46,955 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=1631, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2002, PETRI_PLACES=93, PETRI_TRANSITIONS=148} [2021-03-25 07:47:46,955 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 62 predicate places. [2021-03-25 07:47:46,955 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:46,955 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 148 transitions, 2002 flow [2021-03-25 07:47:46,956 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 148 transitions, 2002 flow [2021-03-25 07:47:46,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 148 transitions, 2002 flow [2021-03-25 07:47:46,999 INFO L129 PetriNetUnfolder]: 192/489 cut-off events. [2021-03-25 07:47:46,999 INFO L130 PetriNetUnfolder]: For 2116/2163 co-relation queries the response was YES. [2021-03-25 07:47:47,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2785 conditions, 489 events. 192/489 cut-off events. For 2116/2163 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3117 event pairs, 14 based on Foata normal form. 7/494 useless extension candidates. Maximal degree in co-relation 2740. Up to 163 conditions per place. [2021-03-25 07:47:47,005 INFO L142 LiptonReduction]: Number of co-enabled transitions 430 [2021-03-25 07:47:47,025 INFO L154 LiptonReduction]: Checked pairs total: 360 [2021-03-25 07:47:47,026 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:47,026 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-25 07:47:47,026 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 148 transitions, 2002 flow [2021-03-25 07:47:47,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:47,026 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:47,026 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:47,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 07:47:47,027 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:47,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:47,027 INFO L82 PathProgramCache]: Analyzing trace with hash -78782307, now seen corresponding path program 6 times [2021-03-25 07:47:47,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:47,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075125443] [2021-03-25 07:47:47,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:47,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:47,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:47:47,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:47,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,085 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:47,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:47,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:47,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075125443] [2021-03-25 07:47:47,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:47,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:47:47,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595707036] [2021-03-25 07:47:47,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:47:47,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:47,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:47:47,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:47:47,090 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 54 [2021-03-25 07:47:47,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 148 transitions, 2002 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:47,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:47,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 54 [2021-03-25 07:47:47,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:47,240 INFO L129 PetriNetUnfolder]: 264/578 cut-off events. [2021-03-25 07:47:47,240 INFO L130 PetriNetUnfolder]: For 3144/3202 co-relation queries the response was YES. [2021-03-25 07:47:47,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3812 conditions, 578 events. 264/578 cut-off events. For 3144/3202 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3295 event pairs, 12 based on Foata normal form. 36/614 useless extension candidates. Maximal degree in co-relation 3723. Up to 459 conditions per place. [2021-03-25 07:47:47,250 INFO L132 encePairwiseOnDemand]: 45/54 looper letters, 133 selfloop transitions, 27 changer transitions 1/166 dead transitions. [2021-03-25 07:47:47,250 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 166 transitions, 2508 flow [2021-03-25 07:47:47,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:47:47,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:47:47,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2021-03-25 07:47:47,252 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6172839506172839 [2021-03-25 07:47:47,252 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 200 transitions. [2021-03-25 07:47:47,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 200 transitions. [2021-03-25 07:47:47,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:47,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 200 transitions. [2021-03-25 07:47:47,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:47,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 54.0) internal successors, (378), 7 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:47,254 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 54.0) internal successors, (378), 7 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:47,254 INFO L185 Difference]: Start difference. First operand has 93 places, 148 transitions, 2002 flow. Second operand 6 states and 200 transitions. [2021-03-25 07:47:47,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 166 transitions, 2508 flow [2021-03-25 07:47:47,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 166 transitions, 2404 flow, removed 27 selfloop flow, removed 2 redundant places. [2021-03-25 07:47:47,275 INFO L241 Difference]: Finished difference. Result has 99 places, 160 transitions, 2142 flow [2021-03-25 07:47:47,275 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=1898, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2142, PETRI_PLACES=99, PETRI_TRANSITIONS=160} [2021-03-25 07:47:47,275 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 68 predicate places. [2021-03-25 07:47:47,275 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:47,275 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 160 transitions, 2142 flow [2021-03-25 07:47:47,276 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 160 transitions, 2142 flow [2021-03-25 07:47:47,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 160 transitions, 2142 flow [2021-03-25 07:47:47,322 INFO L129 PetriNetUnfolder]: 201/510 cut-off events. [2021-03-25 07:47:47,323 INFO L130 PetriNetUnfolder]: For 2409/2453 co-relation queries the response was YES. [2021-03-25 07:47:47,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2932 conditions, 510 events. 201/510 cut-off events. For 2409/2453 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3277 event pairs, 12 based on Foata normal form. 6/513 useless extension candidates. Maximal degree in co-relation 2884. Up to 170 conditions per place. [2021-03-25 07:47:47,330 INFO L142 LiptonReduction]: Number of co-enabled transitions 450 [2021-03-25 07:47:47,375 INFO L154 LiptonReduction]: Checked pairs total: 811 [2021-03-25 07:47:47,375 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:47:47,375 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 100 [2021-03-25 07:47:47,376 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 160 transitions, 2147 flow [2021-03-25 07:47:47,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:47,377 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:47,377 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:47,377 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 07:47:47,377 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:47,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:47,378 INFO L82 PathProgramCache]: Analyzing trace with hash -930521085, now seen corresponding path program 7 times [2021-03-25 07:47:47,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:47,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236593577] [2021-03-25 07:47:47,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:47,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:47,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:47:47,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:47,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,462 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:47,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:47,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:47,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236593577] [2021-03-25 07:47:47,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:47,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:47:47,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587398625] [2021-03-25 07:47:47,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:47:47,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:47,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:47:47,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:47:47,468 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2021-03-25 07:47:47,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 160 transitions, 2147 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:47,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:47,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2021-03-25 07:47:47,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:47,704 INFO L129 PetriNetUnfolder]: 293/663 cut-off events. [2021-03-25 07:47:47,704 INFO L130 PetriNetUnfolder]: For 4096/4154 co-relation queries the response was YES. [2021-03-25 07:47:47,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4299 conditions, 663 events. 293/663 cut-off events. For 4096/4154 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4019 event pairs, 17 based on Foata normal form. 53/716 useless extension candidates. Maximal degree in co-relation 3757. Up to 423 conditions per place. [2021-03-25 07:47:47,712 INFO L132 encePairwiseOnDemand]: 46/55 looper letters, 123 selfloop transitions, 85 changer transitions 2/215 dead transitions. [2021-03-25 07:47:47,712 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 215 transitions, 3205 flow [2021-03-25 07:47:47,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:47:47,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:47:47,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:47:47,715 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5977272727272728 [2021-03-25 07:47:47,715 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:47:47,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:47:47,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:47,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:47:47,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:47,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 55.0) internal successors, (495), 9 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:47,718 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 55.0) internal successors, (495), 9 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:47,718 INFO L185 Difference]: Start difference. First operand has 99 places, 160 transitions, 2147 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:47:47,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 215 transitions, 3205 flow [2021-03-25 07:47:47,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 215 transitions, 3141 flow, removed 32 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:47,744 INFO L241 Difference]: Finished difference. Result has 111 places, 208 transitions, 3032 flow [2021-03-25 07:47:47,744 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=2083, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3032, PETRI_PLACES=111, PETRI_TRANSITIONS=208} [2021-03-25 07:47:47,745 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 80 predicate places. [2021-03-25 07:47:47,745 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:47,745 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 208 transitions, 3032 flow [2021-03-25 07:47:47,745 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 208 transitions, 3032 flow [2021-03-25 07:47:47,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 208 transitions, 3032 flow [2021-03-25 07:47:47,823 INFO L129 PetriNetUnfolder]: 229/574 cut-off events. [2021-03-25 07:47:47,824 INFO L130 PetriNetUnfolder]: For 3725/3974 co-relation queries the response was YES. [2021-03-25 07:47:47,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3626 conditions, 574 events. 229/574 cut-off events. For 3725/3974 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 3782 event pairs, 9 based on Foata normal form. 41/611 useless extension candidates. Maximal degree in co-relation 3571. Up to 194 conditions per place. [2021-03-25 07:47:47,835 INFO L142 LiptonReduction]: Number of co-enabled transitions 562 [2021-03-25 07:47:47,860 INFO L154 LiptonReduction]: Checked pairs total: 495 [2021-03-25 07:47:47,860 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:47,861 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116 [2021-03-25 07:47:47,861 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 208 transitions, 3032 flow [2021-03-25 07:47:47,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:47,861 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:47,862 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:47,862 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 07:47:47,862 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:47,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:47,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1185913777, now seen corresponding path program 1 times [2021-03-25 07:47:47,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:47,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551341703] [2021-03-25 07:47:47,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:47,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:47,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:47,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:47,906 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:47,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:47,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:47,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551341703] [2021-03-25 07:47:47,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:47,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:47:47,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291321798] [2021-03-25 07:47:47,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:47:47,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:47,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:47:47,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:47:47,911 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2021-03-25 07:47:47,911 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 208 transitions, 3032 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:47,911 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:47,911 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2021-03-25 07:47:47,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:48,119 INFO L129 PetriNetUnfolder]: 441/914 cut-off events. [2021-03-25 07:47:48,120 INFO L130 PetriNetUnfolder]: For 6226/6226 co-relation queries the response was YES. [2021-03-25 07:47:48,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6439 conditions, 914 events. 441/914 cut-off events. For 6226/6226 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5504 event pairs, 13 based on Foata normal form. 1/915 useless extension candidates. Maximal degree in co-relation 6381. Up to 731 conditions per place. [2021-03-25 07:47:48,131 INFO L132 encePairwiseOnDemand]: 46/55 looper letters, 179 selfloop transitions, 40 changer transitions 1/225 dead transitions. [2021-03-25 07:47:48,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 225 transitions, 3594 flow [2021-03-25 07:47:48,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:47:48,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:47:48,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2021-03-25 07:47:48,133 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6090909090909091 [2021-03-25 07:47:48,133 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 201 transitions. [2021-03-25 07:47:48,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 201 transitions. [2021-03-25 07:47:48,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:48,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 201 transitions. [2021-03-25 07:47:48,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:48,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:48,135 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:48,135 INFO L185 Difference]: Start difference. First operand has 111 places, 208 transitions, 3032 flow. Second operand 6 states and 201 transitions. [2021-03-25 07:47:48,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 225 transitions, 3594 flow [2021-03-25 07:47:48,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 225 transitions, 3467 flow, removed 58 selfloop flow, removed 1 redundant places. [2021-03-25 07:47:48,172 INFO L241 Difference]: Finished difference. Result has 118 places, 219 transitions, 3139 flow [2021-03-25 07:47:48,172 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=2911, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3139, PETRI_PLACES=118, PETRI_TRANSITIONS=219} [2021-03-25 07:47:48,172 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 87 predicate places. [2021-03-25 07:47:48,173 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:48,173 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 219 transitions, 3139 flow [2021-03-25 07:47:48,173 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 219 transitions, 3139 flow [2021-03-25 07:47:48,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 118 places, 219 transitions, 3139 flow [2021-03-25 07:47:48,236 INFO L129 PetriNetUnfolder]: 237/613 cut-off events. [2021-03-25 07:47:48,236 INFO L130 PetriNetUnfolder]: For 3915/4079 co-relation queries the response was YES. [2021-03-25 07:47:48,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3797 conditions, 613 events. 237/613 cut-off events. For 3915/4079 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4188 event pairs, 14 based on Foata normal form. 36/646 useless extension candidates. Maximal degree in co-relation 3738. Up to 199 conditions per place. [2021-03-25 07:47:48,246 INFO L142 LiptonReduction]: Number of co-enabled transitions 580 [2021-03-25 07:47:48,262 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:48,262 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:48,262 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-25 07:47:48,263 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 219 transitions, 3139 flow [2021-03-25 07:47:48,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:48,263 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:48,263 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:48,263 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 07:47:48,264 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:48,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:48,264 INFO L82 PathProgramCache]: Analyzing trace with hash 189917251, now seen corresponding path program 8 times [2021-03-25 07:47:48,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:48,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600074164] [2021-03-25 07:47:48,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:48,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:48,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:48,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:48,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:48,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:47:48,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:48,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:48,342 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:48,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:48,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600074164] [2021-03-25 07:47:48,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:48,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:47:48,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008103205] [2021-03-25 07:47:48,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:47:48,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:48,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:47:48,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:47:48,348 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2021-03-25 07:47:48,348 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 219 transitions, 3139 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:48,348 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:48,348 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2021-03-25 07:47:48,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:48,580 INFO L129 PetriNetUnfolder]: 321/737 cut-off events. [2021-03-25 07:47:48,580 INFO L130 PetriNetUnfolder]: For 5975/6054 co-relation queries the response was YES. [2021-03-25 07:47:48,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5253 conditions, 737 events. 321/737 cut-off events. For 5975/6054 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 4687 event pairs, 12 based on Foata normal form. 71/808 useless extension candidates. Maximal degree in co-relation 4932. Up to 526 conditions per place. [2021-03-25 07:47:48,589 INFO L132 encePairwiseOnDemand]: 46/55 looper letters, 171 selfloop transitions, 72 changer transitions 1/249 dead transitions. [2021-03-25 07:47:48,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 249 transitions, 3992 flow [2021-03-25 07:47:48,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:47:48,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:47:48,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:47:48,590 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5954545454545455 [2021-03-25 07:47:48,590 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:47:48,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:47:48,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:48,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:47:48,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:48,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 55.0) internal successors, (495), 9 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:48,592 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 55.0) internal successors, (495), 9 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:48,593 INFO L185 Difference]: Start difference. First operand has 118 places, 219 transitions, 3139 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:47:48,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 249 transitions, 3992 flow [2021-03-25 07:47:48,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 249 transitions, 3964 flow, removed 14 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:48,625 INFO L241 Difference]: Finished difference. Result has 129 places, 244 transitions, 3708 flow [2021-03-25 07:47:48,625 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=3111, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3708, PETRI_PLACES=129, PETRI_TRANSITIONS=244} [2021-03-25 07:47:48,625 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 98 predicate places. [2021-03-25 07:47:48,625 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:48,626 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 244 transitions, 3708 flow [2021-03-25 07:47:48,626 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 244 transitions, 3708 flow [2021-03-25 07:47:48,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 244 transitions, 3708 flow [2021-03-25 07:47:48,717 INFO L129 PetriNetUnfolder]: 263/687 cut-off events. [2021-03-25 07:47:48,717 INFO L130 PetriNetUnfolder]: For 4969/5236 co-relation queries the response was YES. [2021-03-25 07:47:48,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4451 conditions, 687 events. 263/687 cut-off events. For 4969/5236 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 4829 event pairs, 11 based on Foata normal form. 42/725 useless extension candidates. Maximal degree in co-relation 4386. Up to 229 conditions per place. [2021-03-25 07:47:48,728 INFO L142 LiptonReduction]: Number of co-enabled transitions 650 [2021-03-25 07:47:48,747 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:48,747 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:48,747 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 122 [2021-03-25 07:47:48,751 INFO L480 AbstractCegarLoop]: Abstraction has has 129 places, 244 transitions, 3708 flow [2021-03-25 07:47:48,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:48,752 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:48,752 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:48,752 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 07:47:48,752 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:48,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:48,753 INFO L82 PathProgramCache]: Analyzing trace with hash 2044193661, now seen corresponding path program 2 times [2021-03-25 07:47:48,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:48,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131431283] [2021-03-25 07:47:48,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:48,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:48,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:48,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:48,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:48,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:48,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:48,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:48,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:48,812 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:48,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:48,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:48,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131431283] [2021-03-25 07:47:48,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:48,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:47:48,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749764433] [2021-03-25 07:47:48,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:47:48,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:48,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:47:48,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:47:48,820 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2021-03-25 07:47:48,821 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 244 transitions, 3708 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:48,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:48,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2021-03-25 07:47:48,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:49,062 INFO L129 PetriNetUnfolder]: 483/1024 cut-off events. [2021-03-25 07:47:49,062 INFO L130 PetriNetUnfolder]: For 8713/8720 co-relation queries the response was YES. [2021-03-25 07:47:49,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7579 conditions, 1024 events. 483/1024 cut-off events. For 8713/8720 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 6498 event pairs, 18 based on Foata normal form. 8/1032 useless extension candidates. Maximal degree in co-relation 7511. Up to 792 conditions per place. [2021-03-25 07:47:49,075 INFO L132 encePairwiseOnDemand]: 46/55 looper letters, 203 selfloop transitions, 50 changer transitions 10/268 dead transitions. [2021-03-25 07:47:49,075 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 268 transitions, 4422 flow [2021-03-25 07:47:49,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:47:49,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:47:49,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:47:49,076 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6025974025974026 [2021-03-25 07:47:49,076 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:47:49,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:47:49,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:49,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:47:49,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:49,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 55.0) internal successors, (440), 8 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:49,078 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 55.0) internal successors, (440), 8 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:49,079 INFO L185 Difference]: Start difference. First operand has 129 places, 244 transitions, 3708 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:47:49,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 268 transitions, 4422 flow [2021-03-25 07:47:49,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 268 transitions, 4320 flow, removed 51 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:49,123 INFO L241 Difference]: Finished difference. Result has 138 places, 253 transitions, 3715 flow [2021-03-25 07:47:49,124 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=3606, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3715, PETRI_PLACES=138, PETRI_TRANSITIONS=253} [2021-03-25 07:47:49,124 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 107 predicate places. [2021-03-25 07:47:49,124 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:49,124 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 253 transitions, 3715 flow [2021-03-25 07:47:49,124 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 253 transitions, 3715 flow [2021-03-25 07:47:49,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 138 places, 253 transitions, 3715 flow [2021-03-25 07:47:49,193 INFO L129 PetriNetUnfolder]: 284/697 cut-off events. [2021-03-25 07:47:49,193 INFO L130 PetriNetUnfolder]: For 5729/5975 co-relation queries the response was YES. [2021-03-25 07:47:49,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4606 conditions, 697 events. 284/697 cut-off events. For 5729/5975 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4725 event pairs, 11 based on Foata normal form. 41/728 useless extension candidates. Maximal degree in co-relation 4536. Up to 227 conditions per place. [2021-03-25 07:47:49,204 INFO L142 LiptonReduction]: Number of co-enabled transitions 624 [2021-03-25 07:47:49,259 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 07:47:49,260 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:47:49,260 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 136 [2021-03-25 07:47:49,261 INFO L480 AbstractCegarLoop]: Abstraction has has 138 places, 253 transitions, 3737 flow [2021-03-25 07:47:49,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:49,262 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:49,262 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:49,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 07:47:49,262 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:49,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:49,262 INFO L82 PathProgramCache]: Analyzing trace with hash -67484033, now seen corresponding path program 9 times [2021-03-25 07:47:49,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:49,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295423488] [2021-03-25 07:47:49,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:49,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:49,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:49,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:49,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:49,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:47:49,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:49,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:49,335 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:49,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:49,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:49,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295423488] [2021-03-25 07:47:49,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:49,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:47:49,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420100467] [2021-03-25 07:47:49,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:47:49,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:49,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:47:49,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:47:49,339 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:49,340 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 253 transitions, 3737 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:49,340 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:49,340 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:49,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:49,624 INFO L129 PetriNetUnfolder]: 331/762 cut-off events. [2021-03-25 07:47:49,624 INFO L130 PetriNetUnfolder]: For 7435/7514 co-relation queries the response was YES. [2021-03-25 07:47:49,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5921 conditions, 762 events. 331/762 cut-off events. For 7435/7514 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4898 event pairs, 14 based on Foata normal form. 71/831 useless extension candidates. Maximal degree in co-relation 5791. Up to 523 conditions per place. [2021-03-25 07:47:49,635 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 179 selfloop transitions, 92 changer transitions 1/277 dead transitions. [2021-03-25 07:47:49,635 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 277 transitions, 4635 flow [2021-03-25 07:47:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:47:49,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:47:49,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:47:49,637 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5870535714285714 [2021-03-25 07:47:49,637 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:47:49,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:47:49,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:49,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:47:49,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:49,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:49,639 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:49,639 INFO L185 Difference]: Start difference. First operand has 138 places, 253 transitions, 3737 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:47:49,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 277 transitions, 4635 flow [2021-03-25 07:47:49,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 277 transitions, 4566 flow, removed 27 selfloop flow, removed 1 redundant places. [2021-03-25 07:47:49,678 INFO L241 Difference]: Finished difference. Result has 145 places, 272 transitions, 4230 flow [2021-03-25 07:47:49,678 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=3668, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4230, PETRI_PLACES=145, PETRI_TRANSITIONS=272} [2021-03-25 07:47:49,678 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 114 predicate places. [2021-03-25 07:47:49,678 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:49,678 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 272 transitions, 4230 flow [2021-03-25 07:47:49,679 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 272 transitions, 4230 flow [2021-03-25 07:47:49,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 272 transitions, 4230 flow [2021-03-25 07:47:49,765 INFO L129 PetriNetUnfolder]: 294/731 cut-off events. [2021-03-25 07:47:49,765 INFO L130 PetriNetUnfolder]: For 6178/6385 co-relation queries the response was YES. [2021-03-25 07:47:49,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5046 conditions, 731 events. 294/731 cut-off events. For 6178/6385 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5081 event pairs, 14 based on Foata normal form. 40/762 useless extension candidates. Maximal degree in co-relation 4974. Up to 238 conditions per place. [2021-03-25 07:47:49,779 INFO L142 LiptonReduction]: Number of co-enabled transitions 660 [2021-03-25 07:47:49,799 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:49,799 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:49,800 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 122 [2021-03-25 07:47:49,800 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 272 transitions, 4230 flow [2021-03-25 07:47:49,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:49,800 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:49,800 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:49,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 07:47:49,801 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:49,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:49,801 INFO L82 PathProgramCache]: Analyzing trace with hash 159223086, now seen corresponding path program 1 times [2021-03-25 07:47:49,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:49,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69209569] [2021-03-25 07:47:49,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:49,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:49,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:49,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:49,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:49,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:49,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:49,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:49,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:49,844 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:49,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:49,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:49,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69209569] [2021-03-25 07:47:49,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:49,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:47:49,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054696772] [2021-03-25 07:47:49,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:47:49,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:49,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:47:49,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:47:49,849 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:49,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 272 transitions, 4230 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:49,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:49,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:49,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:50,057 INFO L129 PetriNetUnfolder]: 334/781 cut-off events. [2021-03-25 07:47:50,057 INFO L130 PetriNetUnfolder]: For 8326/8410 co-relation queries the response was YES. [2021-03-25 07:47:50,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6219 conditions, 781 events. 334/781 cut-off events. For 8326/8410 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5113 event pairs, 11 based on Foata normal form. 76/857 useless extension candidates. Maximal degree in co-relation 6085. Up to 583 conditions per place. [2021-03-25 07:47:50,067 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 230 selfloop transitions, 44 changer transitions 4/283 dead transitions. [2021-03-25 07:47:50,068 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 283 transitions, 4918 flow [2021-03-25 07:47:50,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:47:50,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:47:50,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2021-03-25 07:47:50,069 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2021-03-25 07:47:50,069 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 200 transitions. [2021-03-25 07:47:50,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 200 transitions. [2021-03-25 07:47:50,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:50,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 200 transitions. [2021-03-25 07:47:50,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:50,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:50,071 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:50,071 INFO L185 Difference]: Start difference. First operand has 145 places, 272 transitions, 4230 flow. Second operand 6 states and 200 transitions. [2021-03-25 07:47:50,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 283 transitions, 4918 flow [2021-03-25 07:47:50,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 283 transitions, 4786 flow, removed 66 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:50,111 INFO L241 Difference]: Finished difference. Result has 154 places, 276 transitions, 4318 flow [2021-03-25 07:47:50,111 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4098, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4318, PETRI_PLACES=154, PETRI_TRANSITIONS=276} [2021-03-25 07:47:50,112 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 123 predicate places. [2021-03-25 07:47:50,112 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:50,112 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 276 transitions, 4318 flow [2021-03-25 07:47:50,112 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 276 transitions, 4318 flow [2021-03-25 07:47:50,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 154 places, 276 transitions, 4318 flow [2021-03-25 07:47:50,190 INFO L129 PetriNetUnfolder]: 299/736 cut-off events. [2021-03-25 07:47:50,190 INFO L130 PetriNetUnfolder]: For 7548/7802 co-relation queries the response was YES. [2021-03-25 07:47:50,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5274 conditions, 736 events. 299/736 cut-off events. For 7548/7802 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5092 event pairs, 17 based on Foata normal form. 38/764 useless extension candidates. Maximal degree in co-relation 5196. Up to 234 conditions per place. [2021-03-25 07:47:50,203 INFO L142 LiptonReduction]: Number of co-enabled transitions 664 [2021-03-25 07:47:50,223 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:50,223 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:50,223 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-03-25 07:47:50,224 INFO L480 AbstractCegarLoop]: Abstraction has has 154 places, 276 transitions, 4318 flow [2021-03-25 07:47:50,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:50,224 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:50,225 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:50,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 07:47:50,225 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:50,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:50,225 INFO L82 PathProgramCache]: Analyzing trace with hash 703015670, now seen corresponding path program 2 times [2021-03-25 07:47:50,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:50,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098705199] [2021-03-25 07:47:50,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:50,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:50,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:50,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:50,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:50,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:50,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:50,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:50,289 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:50,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:50,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:50,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098705199] [2021-03-25 07:47:50,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:50,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:47:50,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145941163] [2021-03-25 07:47:50,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:47:50,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:50,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:47:50,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:47:50,294 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:50,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 276 transitions, 4318 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:50,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:50,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:50,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:50,516 INFO L129 PetriNetUnfolder]: 333/777 cut-off events. [2021-03-25 07:47:50,516 INFO L130 PetriNetUnfolder]: For 9834/9918 co-relation queries the response was YES. [2021-03-25 07:47:50,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6388 conditions, 777 events. 333/777 cut-off events. For 9834/9918 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5050 event pairs, 23 based on Foata normal form. 76/853 useless extension candidates. Maximal degree in co-relation 6154. Up to 499 conditions per place. [2021-03-25 07:47:50,531 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 191 selfloop transitions, 84 changer transitions 4/284 dead transitions. [2021-03-25 07:47:50,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 284 transitions, 4958 flow [2021-03-25 07:47:50,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:47:50,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:47:50,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2021-03-25 07:47:50,534 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2021-03-25 07:47:50,534 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 231 transitions. [2021-03-25 07:47:50,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 231 transitions. [2021-03-25 07:47:50,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:50,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 231 transitions. [2021-03-25 07:47:50,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.0) internal successors, (231), 7 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:50,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:50,536 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:50,536 INFO L185 Difference]: Start difference. First operand has 154 places, 276 transitions, 4318 flow. Second operand 7 states and 231 transitions. [2021-03-25 07:47:50,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 284 transitions, 4958 flow [2021-03-25 07:47:50,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 284 transitions, 4903 flow, removed 19 selfloop flow, removed 1 redundant places. [2021-03-25 07:47:50,584 INFO L241 Difference]: Finished difference. Result has 162 places, 276 transitions, 4510 flow [2021-03-25 07:47:50,584 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4263, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4510, PETRI_PLACES=162, PETRI_TRANSITIONS=276} [2021-03-25 07:47:50,584 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 131 predicate places. [2021-03-25 07:47:50,585 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:50,585 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 276 transitions, 4510 flow [2021-03-25 07:47:50,587 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 276 transitions, 4510 flow [2021-03-25 07:47:50,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 162 places, 276 transitions, 4510 flow [2021-03-25 07:47:50,680 INFO L129 PetriNetUnfolder]: 296/725 cut-off events. [2021-03-25 07:47:50,680 INFO L130 PetriNetUnfolder]: For 8425/8689 co-relation queries the response was YES. [2021-03-25 07:47:50,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5545 conditions, 725 events. 296/725 cut-off events. For 8425/8689 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4995 event pairs, 16 based on Foata normal form. 38/753 useless extension candidates. Maximal degree in co-relation 5463. Up to 234 conditions per place. [2021-03-25 07:47:50,693 INFO L142 LiptonReduction]: Number of co-enabled transitions 664 [2021-03-25 07:47:50,711 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:50,711 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:50,711 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 126 [2021-03-25 07:47:50,711 INFO L480 AbstractCegarLoop]: Abstraction has has 162 places, 276 transitions, 4510 flow [2021-03-25 07:47:50,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:50,712 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:50,712 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:50,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 07:47:50,712 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:50,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:50,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1447257891, now seen corresponding path program 3 times [2021-03-25 07:47:50,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:50,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029038474] [2021-03-25 07:47:50,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:50,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:50,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:50,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:50,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:50,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:47:50,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:50,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:50,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:50,770 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:50,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:50,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029038474] [2021-03-25 07:47:50,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:50,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:47:50,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136892739] [2021-03-25 07:47:50,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:47:50,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:50,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:47:50,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:47:50,775 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:50,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 276 transitions, 4510 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:50,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:50,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:50,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:51,071 INFO L129 PetriNetUnfolder]: 499/1070 cut-off events. [2021-03-25 07:47:51,072 INFO L130 PetriNetUnfolder]: For 13729/13729 co-relation queries the response was YES. [2021-03-25 07:47:51,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8976 conditions, 1070 events. 499/1070 cut-off events. For 13729/13729 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 6926 event pairs, 25 based on Foata normal form. 1/1071 useless extension candidates. Maximal degree in co-relation 8891. Up to 795 conditions per place. [2021-03-25 07:47:51,084 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 212 selfloop transitions, 84 changer transitions 1/302 dead transitions. [2021-03-25 07:47:51,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 302 transitions, 5466 flow [2021-03-25 07:47:51,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:47:51,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:47:51,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:47:51,086 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5915178571428571 [2021-03-25 07:47:51,086 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:47:51,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:47:51,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:51,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:47:51,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:51,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:51,088 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:51,088 INFO L185 Difference]: Start difference. First operand has 162 places, 276 transitions, 4510 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:47:51,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 302 transitions, 5466 flow [2021-03-25 07:47:51,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 302 transitions, 5267 flow, removed 8 selfloop flow, removed 7 redundant places. [2021-03-25 07:47:51,154 INFO L241 Difference]: Finished difference. Result has 166 places, 295 transitions, 4938 flow [2021-03-25 07:47:51,154 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4317, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4938, PETRI_PLACES=166, PETRI_TRANSITIONS=295} [2021-03-25 07:47:51,155 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 135 predicate places. [2021-03-25 07:47:51,155 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:51,155 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 295 transitions, 4938 flow [2021-03-25 07:47:51,155 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 295 transitions, 4938 flow [2021-03-25 07:47:51,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 295 transitions, 4938 flow [2021-03-25 07:47:51,239 INFO L129 PetriNetUnfolder]: 318/784 cut-off events. [2021-03-25 07:47:51,239 INFO L130 PetriNetUnfolder]: For 10875/11220 co-relation queries the response was YES. [2021-03-25 07:47:51,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6073 conditions, 784 events. 318/784 cut-off events. For 10875/11220 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5528 event pairs, 22 based on Foata normal form. 40/813 useless extension candidates. Maximal degree in co-relation 5989. Up to 248 conditions per place. [2021-03-25 07:47:51,253 INFO L142 LiptonReduction]: Number of co-enabled transitions 682 [2021-03-25 07:47:51,276 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:51,276 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:51,276 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 121 [2021-03-25 07:47:51,277 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 295 transitions, 4938 flow [2021-03-25 07:47:51,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:51,277 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:51,277 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:51,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 07:47:51,277 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:51,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:51,278 INFO L82 PathProgramCache]: Analyzing trace with hash -409424526, now seen corresponding path program 1 times [2021-03-25 07:47:51,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:51,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655251306] [2021-03-25 07:47:51,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:51,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:51,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:51,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:51,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:51,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:51,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:51,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:51,316 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:51,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:51,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655251306] [2021-03-25 07:47:51,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:51,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:47:51,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45401749] [2021-03-25 07:47:51,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:47:51,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:51,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:47:51,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:47:51,320 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:51,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 295 transitions, 4938 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:51,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:51,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:51,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:51,565 INFO L129 PetriNetUnfolder]: 496/1057 cut-off events. [2021-03-25 07:47:51,566 INFO L130 PetriNetUnfolder]: For 12684/12690 co-relation queries the response was YES. [2021-03-25 07:47:51,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9026 conditions, 1057 events. 496/1057 cut-off events. For 12684/12690 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 6862 event pairs, 10 based on Foata normal form. 7/1064 useless extension candidates. Maximal degree in co-relation 8872. Up to 881 conditions per place. [2021-03-25 07:47:51,579 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 275 selfloop transitions, 32 changer transitions 1/313 dead transitions. [2021-03-25 07:47:51,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 313 transitions, 5774 flow [2021-03-25 07:47:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:47:51,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:47:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:47:51,581 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6011904761904762 [2021-03-25 07:47:51,581 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:47:51,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:47:51,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:51,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:47:51,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:51,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:51,583 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:51,583 INFO L185 Difference]: Start difference. First operand has 166 places, 295 transitions, 4938 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:47:51,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 313 transitions, 5774 flow [2021-03-25 07:47:51,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 313 transitions, 5634 flow, removed 70 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:51,659 INFO L241 Difference]: Finished difference. Result has 174 places, 307 transitions, 5091 flow [2021-03-25 07:47:51,660 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4798, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5091, PETRI_PLACES=174, PETRI_TRANSITIONS=307} [2021-03-25 07:47:51,660 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 143 predicate places. [2021-03-25 07:47:51,660 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:51,660 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 307 transitions, 5091 flow [2021-03-25 07:47:51,661 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 307 transitions, 5091 flow [2021-03-25 07:47:51,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 174 places, 307 transitions, 5091 flow [2021-03-25 07:47:51,755 INFO L129 PetriNetUnfolder]: 325/816 cut-off events. [2021-03-25 07:47:51,755 INFO L130 PetriNetUnfolder]: For 10504/10708 co-relation queries the response was YES. [2021-03-25 07:47:51,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6200 conditions, 816 events. 325/816 cut-off events. For 10504/10708 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5807 event pairs, 12 based on Foata normal form. 40/850 useless extension candidates. Maximal degree in co-relation 6111. Up to 237 conditions per place. [2021-03-25 07:47:51,770 INFO L142 LiptonReduction]: Number of co-enabled transitions 688 [2021-03-25 07:47:51,788 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:51,788 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:51,788 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 128 [2021-03-25 07:47:51,788 INFO L480 AbstractCegarLoop]: Abstraction has has 174 places, 307 transitions, 5091 flow [2021-03-25 07:47:51,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:51,789 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:51,789 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:51,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 07:47:51,789 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:51,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:51,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1268893702, now seen corresponding path program 2 times [2021-03-25 07:47:51,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:51,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794144141] [2021-03-25 07:47:51,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:51,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:51,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:51,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:51,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:51,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:51,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:51,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:51,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:51,842 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:51,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:51,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:51,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794144141] [2021-03-25 07:47:51,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:51,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:47:51,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752015322] [2021-03-25 07:47:51,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:47:51,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:51,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:47:51,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:47:51,846 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:51,846 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 307 transitions, 5091 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:51,846 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:51,846 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:51,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:52,114 INFO L129 PetriNetUnfolder]: 499/1073 cut-off events. [2021-03-25 07:47:52,114 INFO L130 PetriNetUnfolder]: For 13249/13255 co-relation queries the response was YES. [2021-03-25 07:47:52,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9209 conditions, 1073 events. 499/1073 cut-off events. For 13249/13255 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 7041 event pairs, 12 based on Foata normal form. 7/1080 useless extension candidates. Maximal degree in co-relation 9047. Up to 874 conditions per place. [2021-03-25 07:47:52,125 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 274 selfloop transitions, 46 changer transitions 5/330 dead transitions. [2021-03-25 07:47:52,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 330 transitions, 6039 flow [2021-03-25 07:47:52,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:47:52,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:47:52,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:47:52,127 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5943877551020408 [2021-03-25 07:47:52,127 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:47:52,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:47:52,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:52,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:47:52,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:52,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:52,128 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:52,128 INFO L185 Difference]: Start difference. First operand has 174 places, 307 transitions, 5091 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:47:52,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 330 transitions, 6039 flow [2021-03-25 07:47:52,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 330 transitions, 5955 flow, removed 42 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:52,208 INFO L241 Difference]: Finished difference. Result has 183 places, 320 transitions, 5309 flow [2021-03-25 07:47:52,209 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=5007, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5309, PETRI_PLACES=183, PETRI_TRANSITIONS=320} [2021-03-25 07:47:52,209 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 152 predicate places. [2021-03-25 07:47:52,209 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:52,209 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 320 transitions, 5309 flow [2021-03-25 07:47:52,209 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 320 transitions, 5309 flow [2021-03-25 07:47:52,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 183 places, 320 transitions, 5309 flow [2021-03-25 07:47:52,297 INFO L129 PetriNetUnfolder]: 335/814 cut-off events. [2021-03-25 07:47:52,298 INFO L130 PetriNetUnfolder]: For 11745/12100 co-relation queries the response was YES. [2021-03-25 07:47:52,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6341 conditions, 814 events. 335/814 cut-off events. For 11745/12100 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5706 event pairs, 16 based on Foata normal form. 40/844 useless extension candidates. Maximal degree in co-relation 6247. Up to 232 conditions per place. [2021-03-25 07:47:52,306 INFO L142 LiptonReduction]: Number of co-enabled transitions 694 [2021-03-25 07:47:52,320 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:52,320 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:52,320 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-03-25 07:47:52,320 INFO L480 AbstractCegarLoop]: Abstraction has has 183 places, 320 transitions, 5309 flow [2021-03-25 07:47:52,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:52,320 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:52,321 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:52,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-25 07:47:52,321 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:52,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:52,321 INFO L82 PathProgramCache]: Analyzing trace with hash 752537178, now seen corresponding path program 3 times [2021-03-25 07:47:52,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:52,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493736249] [2021-03-25 07:47:52,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:52,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:52,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:52,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:52,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:52,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:52,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:52,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:52,369 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:52,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:52,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:52,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493736249] [2021-03-25 07:47:52,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:52,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:47:52,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537859020] [2021-03-25 07:47:52,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:47:52,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:52,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:47:52,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:47:52,373 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:52,374 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 320 transitions, 5309 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:52,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:52,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:52,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:52,658 INFO L129 PetriNetUnfolder]: 509/1081 cut-off events. [2021-03-25 07:47:52,659 INFO L130 PetriNetUnfolder]: For 16154/16160 co-relation queries the response was YES. [2021-03-25 07:47:52,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9492 conditions, 1081 events. 509/1081 cut-off events. For 16154/16160 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 7036 event pairs, 13 based on Foata normal form. 7/1088 useless extension candidates. Maximal degree in co-relation 9322. Up to 855 conditions per place. [2021-03-25 07:47:52,670 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 283 selfloop transitions, 55 changer transitions 1/344 dead transitions. [2021-03-25 07:47:52,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 344 transitions, 6335 flow [2021-03-25 07:47:52,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:47:52,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:47:52,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:47:52,672 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5969387755102041 [2021-03-25 07:47:52,672 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:47:52,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:47:52,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:52,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:47:52,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:52,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:52,675 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:52,675 INFO L185 Difference]: Start difference. First operand has 183 places, 320 transitions, 5309 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:47:52,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 344 transitions, 6335 flow [2021-03-25 07:47:52,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 344 transitions, 6173 flow, removed 70 selfloop flow, removed 2 redundant places. [2021-03-25 07:47:52,756 INFO L241 Difference]: Finished difference. Result has 190 places, 337 transitions, 5633 flow [2021-03-25 07:47:52,756 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=5169, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5633, PETRI_PLACES=190, PETRI_TRANSITIONS=337} [2021-03-25 07:47:52,757 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 159 predicate places. [2021-03-25 07:47:52,757 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:52,757 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 337 transitions, 5633 flow [2021-03-25 07:47:52,757 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 337 transitions, 5633 flow [2021-03-25 07:47:52,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 190 places, 337 transitions, 5633 flow [2021-03-25 07:47:52,856 INFO L129 PetriNetUnfolder]: 348/859 cut-off events. [2021-03-25 07:47:52,857 INFO L130 PetriNetUnfolder]: For 12298/12508 co-relation queries the response was YES. [2021-03-25 07:47:52,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6667 conditions, 859 events. 348/859 cut-off events. For 12298/12508 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6138 event pairs, 10 based on Foata normal form. 9/859 useless extension candidates. Maximal degree in co-relation 6570. Up to 246 conditions per place. [2021-03-25 07:47:52,871 INFO L142 LiptonReduction]: Number of co-enabled transitions 720 [2021-03-25 07:47:52,885 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:52,885 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:52,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 128 [2021-03-25 07:47:52,886 INFO L480 AbstractCegarLoop]: Abstraction has has 190 places, 337 transitions, 5633 flow [2021-03-25 07:47:52,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:52,886 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:52,886 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:52,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-25 07:47:52,886 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:52,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:52,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1805044810, now seen corresponding path program 4 times [2021-03-25 07:47:52,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:52,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687079642] [2021-03-25 07:47:52,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:52,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:52,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:52,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:52,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:52,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:52,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:52,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:52,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:52,943 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:52,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:52,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:52,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687079642] [2021-03-25 07:47:52,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:52,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:47:52,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158208020] [2021-03-25 07:47:52,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:47:52,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:52,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:47:52,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:47:52,947 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:52,947 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 337 transitions, 5633 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:52,947 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:52,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:52,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:53,259 INFO L129 PetriNetUnfolder]: 515/1098 cut-off events. [2021-03-25 07:47:53,259 INFO L130 PetriNetUnfolder]: For 15730/15743 co-relation queries the response was YES. [2021-03-25 07:47:53,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9736 conditions, 1098 events. 515/1098 cut-off events. For 15730/15743 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 7202 event pairs, 24 based on Foata normal form. 13/1111 useless extension candidates. Maximal degree in co-relation 9562. Up to 844 conditions per place. [2021-03-25 07:47:53,272 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 279 selfloop transitions, 73 changer transitions 5/362 dead transitions. [2021-03-25 07:47:53,272 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 362 transitions, 6702 flow [2021-03-25 07:47:53,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:47:53,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:47:53,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:47:53,273 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5915178571428571 [2021-03-25 07:47:53,274 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:47:53,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:47:53,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:53,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:47:53,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:53,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:53,275 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:53,275 INFO L185 Difference]: Start difference. First operand has 190 places, 337 transitions, 5633 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:47:53,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 362 transitions, 6702 flow [2021-03-25 07:47:53,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 362 transitions, 6592 flow, removed 55 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:53,361 INFO L241 Difference]: Finished difference. Result has 199 places, 351 transitions, 5952 flow [2021-03-25 07:47:53,362 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=5523, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5952, PETRI_PLACES=199, PETRI_TRANSITIONS=351} [2021-03-25 07:47:53,362 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 168 predicate places. [2021-03-25 07:47:53,362 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:53,362 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 351 transitions, 5952 flow [2021-03-25 07:47:53,362 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 351 transitions, 5952 flow [2021-03-25 07:47:53,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 199 places, 351 transitions, 5952 flow [2021-03-25 07:47:53,464 INFO L129 PetriNetUnfolder]: 355/852 cut-off events. [2021-03-25 07:47:53,464 INFO L130 PetriNetUnfolder]: For 13164/13309 co-relation queries the response was YES. [2021-03-25 07:47:53,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6861 conditions, 852 events. 355/852 cut-off events. For 13164/13309 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 5989 event pairs, 11 based on Foata normal form. 41/890 useless extension candidates. Maximal degree in co-relation 6760. Up to 242 conditions per place. [2021-03-25 07:47:53,474 INFO L142 LiptonReduction]: Number of co-enabled transitions 726 [2021-03-25 07:47:53,489 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:53,489 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:53,489 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-03-25 07:47:53,490 INFO L480 AbstractCegarLoop]: Abstraction has has 199 places, 351 transitions, 5952 flow [2021-03-25 07:47:53,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:53,490 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:53,490 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:53,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-25 07:47:53,490 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:53,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:53,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1536668598, now seen corresponding path program 5 times [2021-03-25 07:47:53,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:53,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133622690] [2021-03-25 07:47:53,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:53,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:53,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:53,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:53,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:53,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:53,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:53,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:53,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:53,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:53,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:47:53,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:53,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:53,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:53,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:53,556 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:53,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:53,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133622690] [2021-03-25 07:47:53,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:53,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:47:53,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750251014] [2021-03-25 07:47:53,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:47:53,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:53,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:47:53,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:47:53,560 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:53,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 351 transitions, 5952 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:53,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:53,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:53,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:53,875 INFO L129 PetriNetUnfolder]: 524/1109 cut-off events. [2021-03-25 07:47:53,875 INFO L130 PetriNetUnfolder]: For 16579/16585 co-relation queries the response was YES. [2021-03-25 07:47:53,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10089 conditions, 1109 events. 524/1109 cut-off events. For 16579/16585 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 7247 event pairs, 9 based on Foata normal form. 7/1116 useless extension candidates. Maximal degree in co-relation 9908. Up to 910 conditions per place. [2021-03-25 07:47:53,887 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 306 selfloop transitions, 60 changer transitions 1/372 dead transitions. [2021-03-25 07:47:53,887 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 372 transitions, 7036 flow [2021-03-25 07:47:53,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:47:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:47:53,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:47:53,889 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2021-03-25 07:47:53,889 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:47:53,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:47:53,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:53,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:47:53,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:53,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:53,891 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:53,891 INFO L185 Difference]: Start difference. First operand has 199 places, 351 transitions, 5952 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:47:53,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 372 transitions, 7036 flow [2021-03-25 07:47:53,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 372 transitions, 6836 flow, removed 88 selfloop flow, removed 1 redundant places. [2021-03-25 07:47:53,993 INFO L241 Difference]: Finished difference. Result has 206 places, 366 transitions, 6216 flow [2021-03-25 07:47:53,993 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=5782, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6216, PETRI_PLACES=206, PETRI_TRANSITIONS=366} [2021-03-25 07:47:53,994 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 175 predicate places. [2021-03-25 07:47:53,994 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:53,994 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 206 places, 366 transitions, 6216 flow [2021-03-25 07:47:53,994 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 206 places, 366 transitions, 6216 flow [2021-03-25 07:47:53,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 206 places, 366 transitions, 6216 flow [2021-03-25 07:47:54,081 INFO L129 PetriNetUnfolder]: 367/886 cut-off events. [2021-03-25 07:47:54,081 INFO L130 PetriNetUnfolder]: For 14138/14529 co-relation queries the response was YES. [2021-03-25 07:47:54,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7097 conditions, 886 events. 367/886 cut-off events. For 14138/14529 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 6288 event pairs, 11 based on Foata normal form. 40/922 useless extension candidates. Maximal degree in co-relation 6994. Up to 251 conditions per place. [2021-03-25 07:47:54,091 INFO L142 LiptonReduction]: Number of co-enabled transitions 740 [2021-03-25 07:47:54,106 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:54,107 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:54,107 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 113 [2021-03-25 07:47:54,107 INFO L480 AbstractCegarLoop]: Abstraction has has 206 places, 366 transitions, 6216 flow [2021-03-25 07:47:54,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:54,107 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:54,107 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:54,107 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-25 07:47:54,108 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:54,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:54,108 INFO L82 PathProgramCache]: Analyzing trace with hash -184648338, now seen corresponding path program 6 times [2021-03-25 07:47:54,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:54,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313943824] [2021-03-25 07:47:54,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:54,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:54,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:54,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:54,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:54,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:47:54,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:54,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:54,164 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:54,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:54,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313943824] [2021-03-25 07:47:54,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:54,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:47:54,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613228760] [2021-03-25 07:47:54,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:47:54,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:54,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:47:54,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:47:54,168 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:54,168 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 366 transitions, 6216 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:54,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:54,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:54,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:54,523 INFO L129 PetriNetUnfolder]: 538/1142 cut-off events. [2021-03-25 07:47:54,523 INFO L130 PetriNetUnfolder]: For 19711/19724 co-relation queries the response was YES. [2021-03-25 07:47:54,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10412 conditions, 1142 events. 538/1142 cut-off events. For 19711/19724 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 7489 event pairs, 6 based on Foata normal form. 13/1155 useless extension candidates. Maximal degree in co-relation 10227. Up to 896 conditions per place. [2021-03-25 07:47:54,532 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 316 selfloop transitions, 76 changer transitions 1/398 dead transitions. [2021-03-25 07:47:54,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 398 transitions, 7590 flow [2021-03-25 07:47:54,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:47:54,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:47:54,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:47:54,534 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5915178571428571 [2021-03-25 07:47:54,534 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:47:54,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:47:54,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:54,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:47:54,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:54,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:54,536 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:54,536 INFO L185 Difference]: Start difference. First operand has 206 places, 366 transitions, 6216 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:47:54,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 398 transitions, 7590 flow [2021-03-25 07:47:54,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 398 transitions, 7328 flow, removed 131 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:54,616 INFO L241 Difference]: Finished difference. Result has 217 places, 391 transitions, 6771 flow [2021-03-25 07:47:54,616 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=6060, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6771, PETRI_PLACES=217, PETRI_TRANSITIONS=391} [2021-03-25 07:47:54,616 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 186 predicate places. [2021-03-25 07:47:54,616 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:54,617 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 391 transitions, 6771 flow [2021-03-25 07:47:54,617 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 391 transitions, 6771 flow [2021-03-25 07:47:54,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 217 places, 391 transitions, 6771 flow [2021-03-25 07:47:54,703 INFO L129 PetriNetUnfolder]: 381/915 cut-off events. [2021-03-25 07:47:54,703 INFO L130 PetriNetUnfolder]: For 15070/15314 co-relation queries the response was YES. [2021-03-25 07:47:54,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7531 conditions, 915 events. 381/915 cut-off events. For 15070/15314 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6517 event pairs, 11 based on Foata normal form. 38/948 useless extension candidates. Maximal degree in co-relation 7422. Up to 258 conditions per place. [2021-03-25 07:47:54,718 INFO L142 LiptonReduction]: Number of co-enabled transitions 758 [2021-03-25 07:47:54,744 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:54,744 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:54,745 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 129 [2021-03-25 07:47:54,745 INFO L480 AbstractCegarLoop]: Abstraction has has 217 places, 391 transitions, 6771 flow [2021-03-25 07:47:54,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:54,745 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:54,745 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:54,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-25 07:47:54,746 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:54,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:54,746 INFO L82 PathProgramCache]: Analyzing trace with hash 255814992, now seen corresponding path program 7 times [2021-03-25 07:47:54,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:54,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201423810] [2021-03-25 07:47:54,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:54,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:54,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:54,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:54,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:54,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:47:54,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:54,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:54,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:54,802 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:54,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:54,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:54,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201423810] [2021-03-25 07:47:54,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:54,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:47:54,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619293138] [2021-03-25 07:47:54,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:47:54,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:54,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:47:54,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:47:54,806 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:54,807 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 391 transitions, 6771 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:54,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:54,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:54,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:55,120 INFO L129 PetriNetUnfolder]: 548/1170 cut-off events. [2021-03-25 07:47:55,120 INFO L130 PetriNetUnfolder]: For 20722/20728 co-relation queries the response was YES. [2021-03-25 07:47:55,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10806 conditions, 1170 events. 548/1170 cut-off events. For 20722/20728 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 7788 event pairs, 7 based on Foata normal form. 7/1177 useless extension candidates. Maximal degree in co-relation 10539. Up to 970 conditions per place. [2021-03-25 07:47:55,131 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 358 selfloop transitions, 56 changer transitions 3/422 dead transitions. [2021-03-25 07:47:55,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 422 transitions, 8148 flow [2021-03-25 07:47:55,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:47:55,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:47:55,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:47:55,132 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2021-03-25 07:47:55,132 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:47:55,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:47:55,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:55,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:47:55,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:55,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:55,133 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:55,133 INFO L185 Difference]: Start difference. First operand has 217 places, 391 transitions, 6771 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:47:55,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 422 transitions, 8148 flow [2021-03-25 07:47:55,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 422 transitions, 7936 flow, removed 106 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:55,211 INFO L241 Difference]: Finished difference. Result has 228 places, 414 transitions, 7225 flow [2021-03-25 07:47:55,211 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=6603, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7225, PETRI_PLACES=228, PETRI_TRANSITIONS=414} [2021-03-25 07:47:55,211 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 197 predicate places. [2021-03-25 07:47:55,212 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:55,212 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 414 transitions, 7225 flow [2021-03-25 07:47:55,212 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 414 transitions, 7225 flow [2021-03-25 07:47:55,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 414 transitions, 7225 flow [2021-03-25 07:47:55,319 INFO L129 PetriNetUnfolder]: 389/901 cut-off events. [2021-03-25 07:47:55,320 INFO L130 PetriNetUnfolder]: For 16602/16957 co-relation queries the response was YES. [2021-03-25 07:47:55,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7659 conditions, 901 events. 389/901 cut-off events. For 16602/16957 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6231 event pairs, 11 based on Foata normal form. 41/937 useless extension candidates. Maximal degree in co-relation 7544. Up to 249 conditions per place. [2021-03-25 07:47:55,333 INFO L142 LiptonReduction]: Number of co-enabled transitions 790 [2021-03-25 07:47:55,359 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:55,360 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:55,360 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 148 [2021-03-25 07:47:55,360 INFO L480 AbstractCegarLoop]: Abstraction has has 228 places, 414 transitions, 7225 flow [2021-03-25 07:47:55,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:55,360 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:55,360 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:55,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-25 07:47:55,361 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:55,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:55,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1742435641, now seen corresponding path program 4 times [2021-03-25 07:47:55,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:55,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875514685] [2021-03-25 07:47:55,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:55,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:55,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:55,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:55,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:55,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:55,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:55,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:55,401 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:55,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:55,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:55,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875514685] [2021-03-25 07:47:55,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:55,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:47:55,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633766651] [2021-03-25 07:47:55,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:47:55,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:55,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:47:55,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:47:55,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:55,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 414 transitions, 7225 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:55,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:55,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:55,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:55,685 INFO L129 PetriNetUnfolder]: 559/1167 cut-off events. [2021-03-25 07:47:55,685 INFO L130 PetriNetUnfolder]: For 21023/21030 co-relation queries the response was YES. [2021-03-25 07:47:55,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11104 conditions, 1167 events. 559/1167 cut-off events. For 21023/21030 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 7553 event pairs, 10 based on Foata normal form. 8/1175 useless extension candidates. Maximal degree in co-relation 10986. Up to 986 conditions per place. [2021-03-25 07:47:55,697 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 386 selfloop transitions, 30 changer transitions 3/424 dead transitions. [2021-03-25 07:47:55,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 424 transitions, 8149 flow [2021-03-25 07:47:55,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:47:55,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:47:55,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:47:55,698 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6011904761904762 [2021-03-25 07:47:55,698 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:47:55,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:47:55,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:55,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:47:55,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:55,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:55,699 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:55,699 INFO L185 Difference]: Start difference. First operand has 228 places, 414 transitions, 7225 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:47:55,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 424 transitions, 8149 flow [2021-03-25 07:47:55,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 424 transitions, 7951 flow, removed 87 selfloop flow, removed 2 redundant places. [2021-03-25 07:47:55,787 INFO L241 Difference]: Finished difference. Result has 233 places, 415 transitions, 7116 flow [2021-03-25 07:47:55,787 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=7027, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7116, PETRI_PLACES=233, PETRI_TRANSITIONS=415} [2021-03-25 07:47:55,787 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 202 predicate places. [2021-03-25 07:47:55,787 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:55,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 415 transitions, 7116 flow [2021-03-25 07:47:55,788 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 415 transitions, 7116 flow [2021-03-25 07:47:55,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 233 places, 415 transitions, 7116 flow [2021-03-25 07:47:55,876 INFO L129 PetriNetUnfolder]: 389/903 cut-off events. [2021-03-25 07:47:55,876 INFO L130 PetriNetUnfolder]: For 16255/16568 co-relation queries the response was YES. [2021-03-25 07:47:55,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7638 conditions, 903 events. 389/903 cut-off events. For 16255/16568 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 6299 event pairs, 12 based on Foata normal form. 38/936 useless extension candidates. Maximal degree in co-relation 7521. Up to 246 conditions per place. [2021-03-25 07:47:55,888 INFO L142 LiptonReduction]: Number of co-enabled transitions 788 [2021-03-25 07:47:55,909 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:55,909 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:55,909 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 122 [2021-03-25 07:47:55,909 INFO L480 AbstractCegarLoop]: Abstraction has has 233 places, 415 transitions, 7116 flow [2021-03-25 07:47:55,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:55,910 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:55,910 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:55,910 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-25 07:47:55,910 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:55,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:55,910 INFO L82 PathProgramCache]: Analyzing trace with hash 846080869, now seen corresponding path program 5 times [2021-03-25 07:47:55,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:55,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399219218] [2021-03-25 07:47:55,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:55,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:55,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:55,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:55,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:55,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:55,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:55,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:55,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:55,967 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:55,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:55,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399219218] [2021-03-25 07:47:55,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:55,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:47:55,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419711205] [2021-03-25 07:47:55,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:47:55,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:55,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:47:55,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:47:55,971 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:55,971 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 415 transitions, 7116 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:55,971 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:55,971 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:55,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:56,225 INFO L129 PetriNetUnfolder]: 565/1176 cut-off events. [2021-03-25 07:47:56,225 INFO L130 PetriNetUnfolder]: For 21784/21784 co-relation queries the response was YES. [2021-03-25 07:47:56,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11288 conditions, 1176 events. 565/1176 cut-off events. For 21784/21784 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 7669 event pairs, 6 based on Foata normal form. 1/1177 useless extension candidates. Maximal degree in co-relation 11168. Up to 991 conditions per place. [2021-03-25 07:47:56,237 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 386 selfloop transitions, 42 changer transitions 1/434 dead transitions. [2021-03-25 07:47:56,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 434 transitions, 8298 flow [2021-03-25 07:47:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:47:56,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:47:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:47:56,238 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6011904761904762 [2021-03-25 07:47:56,238 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:47:56,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:47:56,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:56,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:47:56,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:56,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:56,239 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:56,240 INFO L185 Difference]: Start difference. First operand has 233 places, 415 transitions, 7116 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:47:56,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 434 transitions, 8298 flow [2021-03-25 07:47:56,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 434 transitions, 8264 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-03-25 07:47:56,352 INFO L241 Difference]: Finished difference. Result has 240 places, 427 transitions, 7529 flow [2021-03-25 07:47:56,353 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=7082, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7529, PETRI_PLACES=240, PETRI_TRANSITIONS=427} [2021-03-25 07:47:56,353 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 209 predicate places. [2021-03-25 07:47:56,353 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:56,353 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 427 transitions, 7529 flow [2021-03-25 07:47:56,353 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 427 transitions, 7529 flow [2021-03-25 07:47:56,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 427 transitions, 7529 flow [2021-03-25 07:47:56,456 INFO L129 PetriNetUnfolder]: 396/931 cut-off events. [2021-03-25 07:47:56,457 INFO L130 PetriNetUnfolder]: For 17806/17976 co-relation queries the response was YES. [2021-03-25 07:47:56,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8060 conditions, 931 events. 396/931 cut-off events. For 17806/17976 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 6585 event pairs, 9 based on Foata normal form. 9/936 useless extension candidates. Maximal degree in co-relation 7938. Up to 255 conditions per place. [2021-03-25 07:47:56,469 INFO L142 LiptonReduction]: Number of co-enabled transitions 794 [2021-03-25 07:47:56,494 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:56,494 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:56,494 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-03-25 07:47:56,495 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 427 transitions, 7529 flow [2021-03-25 07:47:56,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:56,495 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:56,495 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:56,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-25 07:47:56,495 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:56,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:56,496 INFO L82 PathProgramCache]: Analyzing trace with hash 351681671, now seen corresponding path program 6 times [2021-03-25 07:47:56,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:56,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259212459] [2021-03-25 07:47:56,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:56,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:56,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:56,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:56,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:56,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:56,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:56,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:56,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:56,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:56,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:56,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:56,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:56,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:56,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:56,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:56,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:56,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259212459] [2021-03-25 07:47:56,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:56,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:47:56,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370581555] [2021-03-25 07:47:56,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:47:56,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:56,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:47:56,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:47:56,552 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:56,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 427 transitions, 7529 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:56,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:56,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:56,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:56,894 INFO L129 PetriNetUnfolder]: 565/1192 cut-off events. [2021-03-25 07:47:56,894 INFO L130 PetriNetUnfolder]: For 23721/23721 co-relation queries the response was YES. [2021-03-25 07:47:56,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11572 conditions, 1192 events. 565/1192 cut-off events. For 23721/23721 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 7847 event pairs, 11 based on Foata normal form. 1/1193 useless extension candidates. Maximal degree in co-relation 11447. Up to 932 conditions per place. [2021-03-25 07:47:56,906 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 356 selfloop transitions, 73 changer transitions 3/437 dead transitions. [2021-03-25 07:47:56,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 437 transitions, 8483 flow [2021-03-25 07:47:56,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:47:56,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:47:56,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:47:56,908 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5943877551020408 [2021-03-25 07:47:56,908 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:47:56,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:47:56,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:56,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:47:56,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:56,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:56,909 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:56,909 INFO L185 Difference]: Start difference. First operand has 240 places, 427 transitions, 7529 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:47:56,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 437 transitions, 8483 flow [2021-03-25 07:47:57,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 437 transitions, 8371 flow, removed 56 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:57,023 INFO L241 Difference]: Finished difference. Result has 248 places, 428 transitions, 7632 flow [2021-03-25 07:47:57,023 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=7417, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7632, PETRI_PLACES=248, PETRI_TRANSITIONS=428} [2021-03-25 07:47:57,023 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 217 predicate places. [2021-03-25 07:47:57,023 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:57,023 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 428 transitions, 7632 flow [2021-03-25 07:47:57,024 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 428 transitions, 7632 flow [2021-03-25 07:47:57,027 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 248 places, 428 transitions, 7632 flow [2021-03-25 07:47:57,122 INFO L129 PetriNetUnfolder]: 396/910 cut-off events. [2021-03-25 07:47:57,122 INFO L130 PetriNetUnfolder]: For 19208/19639 co-relation queries the response was YES. [2021-03-25 07:47:57,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8136 conditions, 910 events. 396/910 cut-off events. For 19208/19639 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6277 event pairs, 13 based on Foata normal form. 40/944 useless extension candidates. Maximal degree in co-relation 8010. Up to 251 conditions per place. [2021-03-25 07:47:57,134 INFO L142 LiptonReduction]: Number of co-enabled transitions 788 [2021-03-25 07:47:57,157 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:57,157 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:57,157 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 134 [2021-03-25 07:47:57,157 INFO L480 AbstractCegarLoop]: Abstraction has has 248 places, 428 transitions, 7632 flow [2021-03-25 07:47:57,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:57,158 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:57,158 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:57,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-25 07:47:57,158 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:57,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:57,158 INFO L82 PathProgramCache]: Analyzing trace with hash -13388307, now seen corresponding path program 7 times [2021-03-25 07:47:57,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:57,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122887935] [2021-03-25 07:47:57,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:57,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:57,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:57,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:57,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:57,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:57,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:57,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:57,208 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:57,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:57,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:57,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122887935] [2021-03-25 07:47:57,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:57,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:47:57,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720378758] [2021-03-25 07:47:57,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:47:57,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:57,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:47:57,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:47:57,212 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:57,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 428 transitions, 7632 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:57,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:57,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:57,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:57,584 INFO L129 PetriNetUnfolder]: 567/1191 cut-off events. [2021-03-25 07:47:57,585 INFO L130 PetriNetUnfolder]: For 24961/24968 co-relation queries the response was YES. [2021-03-25 07:47:57,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11796 conditions, 1191 events. 567/1191 cut-off events. For 24961/24968 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 7827 event pairs, 7 based on Foata normal form. 8/1199 useless extension candidates. Maximal degree in co-relation 11667. Up to 980 conditions per place. [2021-03-25 07:47:57,602 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 372 selfloop transitions, 66 changer transitions 3/446 dead transitions. [2021-03-25 07:47:57,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 446 transitions, 8828 flow [2021-03-25 07:47:57,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:47:57,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:47:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:47:57,603 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5943877551020408 [2021-03-25 07:47:57,603 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:47:57,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:47:57,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:57,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:47:57,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:57,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:57,605 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:57,605 INFO L185 Difference]: Start difference. First operand has 248 places, 428 transitions, 7632 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:47:57,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 446 transitions, 8828 flow [2021-03-25 07:47:57,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 446 transitions, 8760 flow, removed 20 selfloop flow, removed 1 redundant places. [2021-03-25 07:47:57,753 INFO L241 Difference]: Finished difference. Result has 257 places, 437 transitions, 8016 flow [2021-03-25 07:47:57,753 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=7568, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=8016, PETRI_PLACES=257, PETRI_TRANSITIONS=437} [2021-03-25 07:47:57,753 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 226 predicate places. [2021-03-25 07:47:57,754 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:57,754 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 437 transitions, 8016 flow [2021-03-25 07:47:57,754 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 437 transitions, 8016 flow [2021-03-25 07:47:57,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 257 places, 437 transitions, 8016 flow [2021-03-25 07:47:57,856 INFO L129 PetriNetUnfolder]: 398/923 cut-off events. [2021-03-25 07:47:57,856 INFO L130 PetriNetUnfolder]: For 19582/19838 co-relation queries the response was YES. [2021-03-25 07:47:57,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8370 conditions, 923 events. 398/923 cut-off events. For 19582/19838 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6459 event pairs, 12 based on Foata normal form. 38/957 useless extension candidates. Maximal degree in co-relation 8239. Up to 255 conditions per place. [2021-03-25 07:47:57,869 INFO L142 LiptonReduction]: Number of co-enabled transitions 796 [2021-03-25 07:47:57,891 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:57,891 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:57,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 137 [2021-03-25 07:47:57,891 INFO L480 AbstractCegarLoop]: Abstraction has has 257 places, 437 transitions, 8016 flow [2021-03-25 07:47:57,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:57,892 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:57,892 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:57,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-25 07:47:57,892 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:57,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:57,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1081560685, now seen corresponding path program 8 times [2021-03-25 07:47:57,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:57,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548469358] [2021-03-25 07:47:57,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:57,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:57,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:57,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:57,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:57,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:57,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:57,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:57,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:57,950 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:57,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:57,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:57,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548469358] [2021-03-25 07:47:57,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:57,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:47:57,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867570879] [2021-03-25 07:47:57,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:47:57,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:57,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:47:57,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:47:57,954 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:57,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 437 transitions, 8016 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:57,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:57,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:57,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:58,372 INFO L129 PetriNetUnfolder]: 572/1204 cut-off events. [2021-03-25 07:47:58,372 INFO L130 PetriNetUnfolder]: For 27076/27076 co-relation queries the response was YES. [2021-03-25 07:47:58,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12132 conditions, 1204 events. 572/1204 cut-off events. For 27076/27076 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 7934 event pairs, 14 based on Foata normal form. 1/1205 useless extension candidates. Maximal degree in co-relation 11998. Up to 927 conditions per place. [2021-03-25 07:47:58,390 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 350 selfloop transitions, 102 changer transitions 3/460 dead transitions. [2021-03-25 07:47:58,390 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 460 transitions, 9319 flow [2021-03-25 07:47:58,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:47:58,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:47:58,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:47:58,391 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2021-03-25 07:47:58,391 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:47:58,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:47:58,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:58,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:47:58,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:58,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:58,393 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:58,393 INFO L185 Difference]: Start difference. First operand has 257 places, 437 transitions, 8016 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:47:58,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 460 transitions, 9319 flow [2021-03-25 07:47:58,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 460 transitions, 9230 flow, removed 37 selfloop flow, removed 1 redundant places. [2021-03-25 07:47:58,530 INFO L241 Difference]: Finished difference. Result has 267 places, 451 transitions, 8571 flow [2021-03-25 07:47:58,530 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=7931, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8571, PETRI_PLACES=267, PETRI_TRANSITIONS=451} [2021-03-25 07:47:58,531 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 236 predicate places. [2021-03-25 07:47:58,531 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:58,531 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 267 places, 451 transitions, 8571 flow [2021-03-25 07:47:58,531 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 267 places, 451 transitions, 8571 flow [2021-03-25 07:47:58,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 267 places, 451 transitions, 8571 flow [2021-03-25 07:47:58,634 INFO L129 PetriNetUnfolder]: 405/924 cut-off events. [2021-03-25 07:47:58,635 INFO L130 PetriNetUnfolder]: For 21204/21382 co-relation queries the response was YES. [2021-03-25 07:47:58,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8781 conditions, 924 events. 405/924 cut-off events. For 21204/21382 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6454 event pairs, 13 based on Foata normal form. 9/929 useless extension candidates. Maximal degree in co-relation 8644. Up to 260 conditions per place. [2021-03-25 07:47:58,648 INFO L142 LiptonReduction]: Number of co-enabled transitions 812 [2021-03-25 07:47:58,670 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:58,670 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:58,670 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 139 [2021-03-25 07:47:58,670 INFO L480 AbstractCegarLoop]: Abstraction has has 267 places, 451 transitions, 8571 flow [2021-03-25 07:47:58,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:58,671 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:58,671 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:58,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-25 07:47:58,671 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:58,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:58,671 INFO L82 PathProgramCache]: Analyzing trace with hash 558066499, now seen corresponding path program 9 times [2021-03-25 07:47:58,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:58,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195892498] [2021-03-25 07:47:58,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:58,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:58,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:58,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:58,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:58,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:58,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:58,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:58,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:58,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:58,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:47:58,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:58,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:58,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:58,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:58,736 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:58,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:58,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:58,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195892498] [2021-03-25 07:47:58,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:58,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:47:58,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574779842] [2021-03-25 07:47:58,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:47:58,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:58,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:47:58,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:47:58,742 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:58,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 451 transitions, 8571 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:58,742 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:58,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:58,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:59,079 INFO L129 PetriNetUnfolder]: 588/1237 cut-off events. [2021-03-25 07:47:59,079 INFO L130 PetriNetUnfolder]: For 29700/29700 co-relation queries the response was YES. [2021-03-25 07:47:59,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12860 conditions, 1237 events. 588/1237 cut-off events. For 29700/29700 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 8175 event pairs, 7 based on Foata normal form. 1/1238 useless extension candidates. Maximal degree in co-relation 12720. Up to 998 conditions per place. [2021-03-25 07:47:59,093 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 387 selfloop transitions, 90 changer transitions 1/483 dead transitions. [2021-03-25 07:47:59,093 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 483 transitions, 10139 flow [2021-03-25 07:47:59,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:47:59,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:47:59,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:47:59,094 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2021-03-25 07:47:59,094 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:47:59,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:47:59,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:59,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:47:59,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:59,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:59,095 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:59,095 INFO L185 Difference]: Start difference. First operand has 267 places, 451 transitions, 8571 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:47:59,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 483 transitions, 10139 flow [2021-03-25 07:47:59,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 483 transitions, 10029 flow, removed 55 selfloop flow, removed 0 redundant places. [2021-03-25 07:47:59,224 INFO L241 Difference]: Finished difference. Result has 278 places, 476 transitions, 9343 flow [2021-03-25 07:47:59,224 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=8465, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9343, PETRI_PLACES=278, PETRI_TRANSITIONS=476} [2021-03-25 07:47:59,224 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 247 predicate places. [2021-03-25 07:47:59,224 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:59,224 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 476 transitions, 9343 flow [2021-03-25 07:47:59,225 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 476 transitions, 9343 flow [2021-03-25 07:47:59,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 278 places, 476 transitions, 9343 flow [2021-03-25 07:47:59,334 INFO L129 PetriNetUnfolder]: 422/982 cut-off events. [2021-03-25 07:47:59,335 INFO L130 PetriNetUnfolder]: For 23333/23651 co-relation queries the response was YES. [2021-03-25 07:47:59,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9483 conditions, 982 events. 422/982 cut-off events. For 23333/23651 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7007 event pairs, 15 based on Foata normal form. 39/1017 useless extension candidates. Maximal degree in co-relation 9340. Up to 270 conditions per place. [2021-03-25 07:47:59,351 INFO L142 LiptonReduction]: Number of co-enabled transitions 824 [2021-03-25 07:47:59,377 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:47:59,377 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:47:59,377 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 153 [2021-03-25 07:47:59,377 INFO L480 AbstractCegarLoop]: Abstraction has has 278 places, 476 transitions, 9343 flow [2021-03-25 07:47:59,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:59,378 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:47:59,378 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:47:59,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-25 07:47:59,378 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:47:59,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:47:59,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1152546809, now seen corresponding path program 10 times [2021-03-25 07:47:59,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:47:59,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183139200] [2021-03-25 07:47:59,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:47:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:47:59,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:59,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:59,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:59,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:59,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:59,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:59,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:59,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:59,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:59,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:47:59,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:59,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:47:59,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:47:59,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:47:59,431 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:47:59,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:47:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:47:59,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183139200] [2021-03-25 07:47:59,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:47:59,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:47:59,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687950085] [2021-03-25 07:47:59,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:47:59,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:47:59,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:47:59,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:47:59,435 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 56 [2021-03-25 07:47:59,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 476 transitions, 9343 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:59,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:47:59,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 56 [2021-03-25 07:47:59,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:47:59,772 INFO L129 PetriNetUnfolder]: 598/1255 cut-off events. [2021-03-25 07:47:59,773 INFO L130 PetriNetUnfolder]: For 32072/32079 co-relation queries the response was YES. [2021-03-25 07:47:59,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13374 conditions, 1255 events. 598/1255 cut-off events. For 32072/32079 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 8292 event pairs, 9 based on Foata normal form. 8/1263 useless extension candidates. Maximal degree in co-relation 13228. Up to 1046 conditions per place. [2021-03-25 07:47:59,785 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 436 selfloop transitions, 64 changer transitions 3/508 dead transitions. [2021-03-25 07:47:59,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 508 transitions, 10993 flow [2021-03-25 07:47:59,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:47:59,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:47:59,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:47:59,787 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2021-03-25 07:47:59,787 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:47:59,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:47:59,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:47:59,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:47:59,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:59,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:59,788 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:47:59,788 INFO L185 Difference]: Start difference. First operand has 278 places, 476 transitions, 9343 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:47:59,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 508 transitions, 10993 flow [2021-03-25 07:47:59,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 508 transitions, 10732 flow, removed 125 selfloop flow, removed 1 redundant places. [2021-03-25 07:47:59,925 INFO L241 Difference]: Finished difference. Result has 288 places, 499 transitions, 9811 flow [2021-03-25 07:47:59,926 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=9088, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9811, PETRI_PLACES=288, PETRI_TRANSITIONS=499} [2021-03-25 07:47:59,926 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 257 predicate places. [2021-03-25 07:47:59,926 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:47:59,926 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 288 places, 499 transitions, 9811 flow [2021-03-25 07:47:59,926 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 288 places, 499 transitions, 9811 flow [2021-03-25 07:47:59,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 288 places, 499 transitions, 9811 flow [2021-03-25 07:48:00,047 INFO L129 PetriNetUnfolder]: 430/978 cut-off events. [2021-03-25 07:48:00,047 INFO L130 PetriNetUnfolder]: For 22841/23016 co-relation queries the response was YES. [2021-03-25 07:48:00,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9506 conditions, 978 events. 430/978 cut-off events. For 22841/23016 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 6891 event pairs, 11 based on Foata normal form. 10/984 useless extension candidates. Maximal degree in co-relation 9357. Up to 273 conditions per place. [2021-03-25 07:48:00,061 INFO L142 LiptonReduction]: Number of co-enabled transitions 840 [2021-03-25 07:48:00,139 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 07:48:00,140 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:48:00,140 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 214 [2021-03-25 07:48:00,140 INFO L480 AbstractCegarLoop]: Abstraction has has 288 places, 499 transitions, 9856 flow [2021-03-25 07:48:00,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:00,140 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:00,140 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:00,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-25 07:48:00,141 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:00,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:00,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1531479529, now seen corresponding path program 11 times [2021-03-25 07:48:00,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:00,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586783806] [2021-03-25 07:48:00,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:00,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:00,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:00,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:00,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:00,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:00,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:00,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:00,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:00,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:00,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:00,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:00,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:00,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:00,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:00,200 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:00,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:00,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:00,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586783806] [2021-03-25 07:48:00,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:00,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:00,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453211162] [2021-03-25 07:48:00,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:00,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:00,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:00,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:00,204 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 57 [2021-03-25 07:48:00,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 499 transitions, 9856 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:00,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:00,204 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 57 [2021-03-25 07:48:00,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:00,622 INFO L129 PetriNetUnfolder]: 604/1281 cut-off events. [2021-03-25 07:48:00,622 INFO L130 PetriNetUnfolder]: For 31605/31605 co-relation queries the response was YES. [2021-03-25 07:48:00,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13697 conditions, 1281 events. 604/1281 cut-off events. For 31605/31605 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 8621 event pairs, 5 based on Foata normal form. 1/1279 useless extension candidates. Maximal degree in co-relation 13545. Up to 1037 conditions per place. [2021-03-25 07:48:00,640 INFO L132 encePairwiseOnDemand]: 48/57 looper letters, 430 selfloop transitions, 95 changer transitions 1/531 dead transitions. [2021-03-25 07:48:00,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 531 transitions, 11700 flow [2021-03-25 07:48:00,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:00,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:00,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:48:00,641 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2021-03-25 07:48:00,641 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:48:00,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:48:00,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:00,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:48:00,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:00,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 57.0) internal successors, (513), 9 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:00,643 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 57.0) internal successors, (513), 9 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:00,643 INFO L185 Difference]: Start difference. First operand has 288 places, 499 transitions, 9856 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:48:00,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 531 transitions, 11700 flow [2021-03-25 07:48:00,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 531 transitions, 11345 flow, removed 160 selfloop flow, removed 2 redundant places. [2021-03-25 07:48:00,806 INFO L241 Difference]: Finished difference. Result has 298 places, 525 transitions, 10621 flow [2021-03-25 07:48:00,806 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=9517, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10621, PETRI_PLACES=298, PETRI_TRANSITIONS=525} [2021-03-25 07:48:00,806 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 267 predicate places. [2021-03-25 07:48:00,806 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:00,806 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 298 places, 525 transitions, 10621 flow [2021-03-25 07:48:00,806 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 298 places, 525 transitions, 10621 flow [2021-03-25 07:48:00,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 298 places, 525 transitions, 10621 flow [2021-03-25 07:48:00,926 INFO L129 PetriNetUnfolder]: 439/1022 cut-off events. [2021-03-25 07:48:00,926 INFO L130 PetriNetUnfolder]: For 26945/27207 co-relation queries the response was YES. [2021-03-25 07:48:00,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10083 conditions, 1022 events. 439/1022 cut-off events. For 26945/27207 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 7361 event pairs, 11 based on Foata normal form. 9/1026 useless extension candidates. Maximal degree in co-relation 9929. Up to 284 conditions per place. [2021-03-25 07:48:00,941 INFO L142 LiptonReduction]: Number of co-enabled transitions 876 [2021-03-25 07:48:00,972 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:00,972 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:00,973 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 167 [2021-03-25 07:48:00,973 INFO L480 AbstractCegarLoop]: Abstraction has has 298 places, 525 transitions, 10621 flow [2021-03-25 07:48:00,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:00,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:00,973 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:00,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-25 07:48:00,974 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:00,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:00,974 INFO L82 PathProgramCache]: Analyzing trace with hash 298995341, now seen corresponding path program 1 times [2021-03-25 07:48:00,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:00,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675446089] [2021-03-25 07:48:00,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:00,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:00,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:00,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:00,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:00,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:00,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:00,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:00,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:00,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:00,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:01,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:01,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:01,008 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:01,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:01,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:01,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675446089] [2021-03-25 07:48:01,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:01,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:48:01,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149747187] [2021-03-25 07:48:01,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:48:01,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:01,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:48:01,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:48:01,016 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 57 [2021-03-25 07:48:01,016 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 525 transitions, 10621 flow. Second operand has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 6 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:01,016 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:01,016 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 57 [2021-03-25 07:48:01,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:01,294 INFO L129 PetriNetUnfolder]: 444/1035 cut-off events. [2021-03-25 07:48:01,294 INFO L130 PetriNetUnfolder]: For 31799/32577 co-relation queries the response was YES. [2021-03-25 07:48:01,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11204 conditions, 1035 events. 444/1035 cut-off events. For 31799/32577 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 7357 event pairs, 9 based on Foata normal form. 263/1296 useless extension candidates. Maximal degree in co-relation 10631. Up to 810 conditions per place. [2021-03-25 07:48:01,306 INFO L132 encePairwiseOnDemand]: 49/57 looper letters, 481 selfloop transitions, 52 changer transitions 1/540 dead transitions. [2021-03-25 07:48:01,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 540 transitions, 11917 flow [2021-03-25 07:48:01,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:48:01,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:48:01,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2021-03-25 07:48:01,307 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2021-03-25 07:48:01,307 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 210 transitions. [2021-03-25 07:48:01,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 210 transitions. [2021-03-25 07:48:01,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:01,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 210 transitions. [2021-03-25 07:48:01,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:01,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 57.0) internal successors, (399), 7 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:01,308 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 57.0) internal successors, (399), 7 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:01,308 INFO L185 Difference]: Start difference. First operand has 298 places, 525 transitions, 10621 flow. Second operand 6 states and 210 transitions. [2021-03-25 07:48:01,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 540 transitions, 11917 flow [2021-03-25 07:48:01,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 540 transitions, 11731 flow, removed 93 selfloop flow, removed 0 redundant places. [2021-03-25 07:48:01,440 INFO L241 Difference]: Finished difference. Result has 307 places, 537 transitions, 10844 flow [2021-03-25 07:48:01,441 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=10435, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=10844, PETRI_PLACES=307, PETRI_TRANSITIONS=537} [2021-03-25 07:48:01,441 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 276 predicate places. [2021-03-25 07:48:01,441 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:01,441 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 307 places, 537 transitions, 10844 flow [2021-03-25 07:48:01,441 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 307 places, 537 transitions, 10844 flow [2021-03-25 07:48:01,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 307 places, 537 transitions, 10844 flow [2021-03-25 07:48:01,596 INFO L129 PetriNetUnfolder]: 442/1063 cut-off events. [2021-03-25 07:48:01,596 INFO L130 PetriNetUnfolder]: For 27021/27262 co-relation queries the response was YES. [2021-03-25 07:48:01,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10364 conditions, 1063 events. 442/1063 cut-off events. For 27021/27262 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 7851 event pairs, 15 based on Foata normal form. 42/1102 useless extension candidates. Maximal degree in co-relation 10204. Up to 288 conditions per place. [2021-03-25 07:48:01,616 INFO L142 LiptonReduction]: Number of co-enabled transitions 912 [2021-03-25 07:48:01,648 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:01,648 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:01,648 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 207 [2021-03-25 07:48:01,649 INFO L480 AbstractCegarLoop]: Abstraction has has 307 places, 537 transitions, 10844 flow [2021-03-25 07:48:01,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 6 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:01,649 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:01,649 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:01,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-25 07:48:01,649 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:01,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:01,649 INFO L82 PathProgramCache]: Analyzing trace with hash -775431587, now seen corresponding path program 12 times [2021-03-25 07:48:01,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:01,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407023331] [2021-03-25 07:48:01,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:01,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:01,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:01,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:01,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:01,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:01,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:01,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:01,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:01,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:01,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:01,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:01,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:01,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:01,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:01,689 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:01,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:01,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:01,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407023331] [2021-03-25 07:48:01,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:01,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:48:01,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119511740] [2021-03-25 07:48:01,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:48:01,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:01,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:48:01,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:48:01,694 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 57 [2021-03-25 07:48:01,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 537 transitions, 10844 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:01,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:01,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 57 [2021-03-25 07:48:01,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:02,080 INFO L129 PetriNetUnfolder]: 616/1335 cut-off events. [2021-03-25 07:48:02,080 INFO L130 PetriNetUnfolder]: For 37367/37367 co-relation queries the response was YES. [2021-03-25 07:48:02,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14502 conditions, 1335 events. 616/1335 cut-off events. For 37367/37367 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 9247 event pairs, 12 based on Foata normal form. 1/1336 useless extension candidates. Maximal degree in co-relation 14339. Up to 1086 conditions per place. [2021-03-25 07:48:02,097 INFO L132 encePairwiseOnDemand]: 48/57 looper letters, 490 selfloop transitions, 55 changer transitions 1/551 dead transitions. [2021-03-25 07:48:02,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 551 transitions, 12248 flow [2021-03-25 07:48:02,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:48:02,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:48:02,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:48:02,098 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5906432748538012 [2021-03-25 07:48:02,098 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:48:02,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:48:02,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:02,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:48:02,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:02,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 57.0) internal successors, (399), 7 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:02,099 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 57.0) internal successors, (399), 7 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:02,099 INFO L185 Difference]: Start difference. First operand has 307 places, 537 transitions, 10844 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:48:02,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 551 transitions, 12248 flow [2021-03-25 07:48:02,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 551 transitions, 12228 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-03-25 07:48:02,263 INFO L241 Difference]: Finished difference. Result has 315 places, 545 transitions, 11283 flow [2021-03-25 07:48:02,264 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=10824, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=486, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=11283, PETRI_PLACES=315, PETRI_TRANSITIONS=545} [2021-03-25 07:48:02,264 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 284 predicate places. [2021-03-25 07:48:02,264 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:02,264 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 315 places, 545 transitions, 11283 flow [2021-03-25 07:48:02,264 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 315 places, 545 transitions, 11283 flow [2021-03-25 07:48:02,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 315 places, 545 transitions, 11283 flow [2021-03-25 07:48:02,457 INFO L129 PetriNetUnfolder]: 446/1093 cut-off events. [2021-03-25 07:48:02,457 INFO L130 PetriNetUnfolder]: For 29452/29634 co-relation queries the response was YES. [2021-03-25 07:48:02,470 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10810 conditions, 1093 events. 446/1093 cut-off events. For 29452/29634 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 8240 event pairs, 14 based on Foata normal form. 41/1131 useless extension candidates. Maximal degree in co-relation 10645. Up to 292 conditions per place. [2021-03-25 07:48:02,484 INFO L142 LiptonReduction]: Number of co-enabled transitions 920 [2021-03-25 07:48:02,540 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:02,540 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:02,540 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 276 [2021-03-25 07:48:02,540 INFO L480 AbstractCegarLoop]: Abstraction has has 315 places, 545 transitions, 11283 flow [2021-03-25 07:48:02,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:02,540 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:02,541 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:02,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-25 07:48:02,542 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:02,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:02,542 INFO L82 PathProgramCache]: Analyzing trace with hash 57535329, now seen corresponding path program 13 times [2021-03-25 07:48:02,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:02,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49785245] [2021-03-25 07:48:02,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:02,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:02,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:02,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:02,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:02,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:02,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:02,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:02,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:02,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:02,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:02,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:02,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:02,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:02,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:02,606 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:02,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:02,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:02,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49785245] [2021-03-25 07:48:02,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:02,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:02,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41588293] [2021-03-25 07:48:02,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:02,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:02,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:02,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:02,611 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 57 [2021-03-25 07:48:02,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 545 transitions, 11283 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:02,612 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:02,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 57 [2021-03-25 07:48:02,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:02,982 INFO L129 PetriNetUnfolder]: 619/1349 cut-off events. [2021-03-25 07:48:02,982 INFO L130 PetriNetUnfolder]: For 41664/41664 co-relation queries the response was YES. [2021-03-25 07:48:02,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14932 conditions, 1349 events. 619/1349 cut-off events. For 41664/41664 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 9403 event pairs, 12 based on Foata normal form. 1/1350 useless extension candidates. Maximal degree in co-relation 14764. Up to 1051 conditions per place. [2021-03-25 07:48:02,998 INFO L132 encePairwiseOnDemand]: 48/57 looper letters, 462 selfloop transitions, 92 changer transitions 1/560 dead transitions. [2021-03-25 07:48:02,998 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 560 transitions, 12725 flow [2021-03-25 07:48:02,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:02,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:02,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:48:02,999 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5864661654135338 [2021-03-25 07:48:02,999 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:48:03,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:48:03,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:03,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:48:03,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:03,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 57.0) internal successors, (456), 8 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:03,001 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 57.0) internal successors, (456), 8 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:03,001 INFO L185 Difference]: Start difference. First operand has 315 places, 545 transitions, 11283 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:48:03,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 560 transitions, 12725 flow [2021-03-25 07:48:03,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 560 transitions, 12625 flow, removed 50 selfloop flow, removed 0 redundant places. [2021-03-25 07:48:03,186 INFO L241 Difference]: Finished difference. Result has 324 places, 553 transitions, 11759 flow [2021-03-25 07:48:03,186 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=11183, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=11759, PETRI_PLACES=324, PETRI_TRANSITIONS=553} [2021-03-25 07:48:03,186 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 293 predicate places. [2021-03-25 07:48:03,187 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:03,187 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 553 transitions, 11759 flow [2021-03-25 07:48:03,187 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 553 transitions, 11759 flow [2021-03-25 07:48:03,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 324 places, 553 transitions, 11759 flow [2021-03-25 07:48:03,384 INFO L129 PetriNetUnfolder]: 449/1104 cut-off events. [2021-03-25 07:48:03,384 INFO L130 PetriNetUnfolder]: For 32320/32565 co-relation queries the response was YES. [2021-03-25 07:48:03,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11189 conditions, 1104 events. 449/1104 cut-off events. For 32320/32565 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 8303 event pairs, 10 based on Foata normal form. 42/1143 useless extension candidates. Maximal degree in co-relation 11019. Up to 295 conditions per place. [2021-03-25 07:48:03,413 INFO L142 LiptonReduction]: Number of co-enabled transitions 928 [2021-03-25 07:48:03,467 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:03,467 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:03,467 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 281 [2021-03-25 07:48:03,467 INFO L480 AbstractCegarLoop]: Abstraction has has 324 places, 553 transitions, 11759 flow [2021-03-25 07:48:03,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:03,467 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:03,468 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:03,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-25 07:48:03,468 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:03,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:03,469 INFO L82 PathProgramCache]: Analyzing trace with hash 451991333, now seen corresponding path program 14 times [2021-03-25 07:48:03,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:03,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18997777] [2021-03-25 07:48:03,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:03,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:03,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:03,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:03,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:03,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:03,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:03,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:03,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:03,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:03,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:03,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:03,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:03,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:03,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:03,516 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:03,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:03,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18997777] [2021-03-25 07:48:03,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:03,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:03,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848988147] [2021-03-25 07:48:03,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:03,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:03,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:03,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:03,521 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 57 [2021-03-25 07:48:03,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 553 transitions, 11759 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:03,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:03,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 57 [2021-03-25 07:48:03,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:03,954 INFO L129 PetriNetUnfolder]: 623/1371 cut-off events. [2021-03-25 07:48:03,954 INFO L130 PetriNetUnfolder]: For 45453/45453 co-relation queries the response was YES. [2021-03-25 07:48:03,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15453 conditions, 1371 events. 623/1371 cut-off events. For 45453/45453 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 9672 event pairs, 12 based on Foata normal form. 1/1372 useless extension candidates. Maximal degree in co-relation 15280. Up to 1079 conditions per place. [2021-03-25 07:48:03,968 INFO L132 encePairwiseOnDemand]: 48/57 looper letters, 475 selfloop transitions, 87 changer transitions 2/569 dead transitions. [2021-03-25 07:48:03,968 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 569 transitions, 13301 flow [2021-03-25 07:48:03,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:03,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:03,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:48:03,969 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5839598997493735 [2021-03-25 07:48:03,969 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:48:03,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:48:03,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:03,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:48:03,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:03,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 57.0) internal successors, (456), 8 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:03,970 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 57.0) internal successors, (456), 8 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:03,971 INFO L185 Difference]: Start difference. First operand has 324 places, 553 transitions, 11759 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:48:03,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 569 transitions, 13301 flow [2021-03-25 07:48:04,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 569 transitions, 13129 flow, removed 65 selfloop flow, removed 2 redundant places. [2021-03-25 07:48:04,165 INFO L241 Difference]: Finished difference. Result has 330 places, 562 transitions, 12165 flow [2021-03-25 07:48:04,165 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=11607, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=12165, PETRI_PLACES=330, PETRI_TRANSITIONS=562} [2021-03-25 07:48:04,165 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 299 predicate places. [2021-03-25 07:48:04,165 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:04,165 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 330 places, 562 transitions, 12165 flow [2021-03-25 07:48:04,165 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 330 places, 562 transitions, 12165 flow [2021-03-25 07:48:04,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 330 places, 562 transitions, 12165 flow [2021-03-25 07:48:04,313 INFO L129 PetriNetUnfolder]: 451/1103 cut-off events. [2021-03-25 07:48:04,313 INFO L130 PetriNetUnfolder]: For 33077/33300 co-relation queries the response was YES. [2021-03-25 07:48:04,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11413 conditions, 1103 events. 451/1103 cut-off events. For 33077/33300 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 8317 event pairs, 12 based on Foata normal form. 35/1135 useless extension candidates. Maximal degree in co-relation 11240. Up to 298 conditions per place. [2021-03-25 07:48:04,332 INFO L142 LiptonReduction]: Number of co-enabled transitions 940 [2021-03-25 07:48:04,384 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:04,385 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:04,385 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 220 [2021-03-25 07:48:04,385 INFO L480 AbstractCegarLoop]: Abstraction has has 330 places, 562 transitions, 12165 flow [2021-03-25 07:48:04,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:04,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:04,386 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:04,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-25 07:48:04,386 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:04,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:04,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1546940325, now seen corresponding path program 15 times [2021-03-25 07:48:04,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:04,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045153360] [2021-03-25 07:48:04,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:04,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:04,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:04,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:04,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:04,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:04,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:04,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:04,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:04,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:04,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:04,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:04,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:04,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:04,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:04,441 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:04,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:04,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:04,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045153360] [2021-03-25 07:48:04,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:04,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:04,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910346949] [2021-03-25 07:48:04,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:04,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:04,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:04,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:04,445 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 57 [2021-03-25 07:48:04,445 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 562 transitions, 12165 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:04,445 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:04,445 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 57 [2021-03-25 07:48:04,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:04,891 INFO L129 PetriNetUnfolder]: 639/1403 cut-off events. [2021-03-25 07:48:04,891 INFO L130 PetriNetUnfolder]: For 49040/49047 co-relation queries the response was YES. [2021-03-25 07:48:04,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15961 conditions, 1403 events. 639/1403 cut-off events. For 49040/49047 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 9969 event pairs, 13 based on Foata normal form. 8/1411 useless extension candidates. Maximal degree in co-relation 15785. Up to 1064 conditions per place. [2021-03-25 07:48:04,909 INFO L132 encePairwiseOnDemand]: 48/57 looper letters, 459 selfloop transitions, 140 changer transitions 1/605 dead transitions. [2021-03-25 07:48:04,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 605 transitions, 14234 flow [2021-03-25 07:48:04,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:04,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:04,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:48:04,910 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.581140350877193 [2021-03-25 07:48:04,910 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:48:04,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:48:04,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:04,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:48:04,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:04,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 57.0) internal successors, (513), 9 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:04,912 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 57.0) internal successors, (513), 9 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:04,912 INFO L185 Difference]: Start difference. First operand has 330 places, 562 transitions, 12165 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:48:04,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 605 transitions, 14234 flow [2021-03-25 07:48:05,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 605 transitions, 14116 flow, removed 59 selfloop flow, removed 0 redundant places. [2021-03-25 07:48:05,146 INFO L241 Difference]: Finished difference. Result has 343 places, 598 transitions, 13440 flow [2021-03-25 07:48:05,146 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=12047, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13440, PETRI_PLACES=343, PETRI_TRANSITIONS=598} [2021-03-25 07:48:05,146 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 312 predicate places. [2021-03-25 07:48:05,146 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:05,146 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 343 places, 598 transitions, 13440 flow [2021-03-25 07:48:05,147 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 343 places, 598 transitions, 13440 flow [2021-03-25 07:48:05,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 343 places, 598 transitions, 13440 flow [2021-03-25 07:48:05,345 INFO L129 PetriNetUnfolder]: 469/1142 cut-off events. [2021-03-25 07:48:05,345 INFO L130 PetriNetUnfolder]: For 39914/40404 co-relation queries the response was YES. [2021-03-25 07:48:05,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12289 conditions, 1142 events. 469/1142 cut-off events. For 39914/40404 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 8645 event pairs, 14 based on Foata normal form. 41/1178 useless extension candidates. Maximal degree in co-relation 12108. Up to 320 conditions per place. [2021-03-25 07:48:05,366 INFO L142 LiptonReduction]: Number of co-enabled transitions 958 [2021-03-25 07:48:05,402 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:05,403 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:05,403 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 257 [2021-03-25 07:48:05,403 INFO L480 AbstractCegarLoop]: Abstraction has has 343 places, 598 transitions, 13440 flow [2021-03-25 07:48:05,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:05,403 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:05,403 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:05,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-25 07:48:05,403 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:05,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:05,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1564699271, now seen corresponding path program 16 times [2021-03-25 07:48:05,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:05,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764728488] [2021-03-25 07:48:05,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:05,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:05,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:05,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:05,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:05,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:05,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:05,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:05,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:05,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:05,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:05,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:05,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:05,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:05,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:05,456 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:05,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:05,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:05,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764728488] [2021-03-25 07:48:05,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:05,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:05,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119761907] [2021-03-25 07:48:05,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:05,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:05,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:05,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:05,459 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 57 [2021-03-25 07:48:05,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 598 transitions, 13440 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:05,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:05,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 57 [2021-03-25 07:48:05,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:05,927 INFO L129 PetriNetUnfolder]: 649/1440 cut-off events. [2021-03-25 07:48:05,928 INFO L130 PetriNetUnfolder]: For 53366/53366 co-relation queries the response was YES. [2021-03-25 07:48:05,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16876 conditions, 1440 events. 649/1440 cut-off events. For 53366/53366 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 10363 event pairs, 9 based on Foata normal form. 1/1441 useless extension candidates. Maximal degree in co-relation 16692. Up to 1102 conditions per place. [2021-03-25 07:48:05,947 INFO L132 encePairwiseOnDemand]: 48/57 looper letters, 487 selfloop transitions, 132 changer transitions 1/625 dead transitions. [2021-03-25 07:48:05,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 625 transitions, 15354 flow [2021-03-25 07:48:05,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:05,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:05,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:48:05,948 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2021-03-25 07:48:05,948 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:48:05,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:48:05,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:05,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:48:05,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:05,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 57.0) internal successors, (513), 9 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:05,949 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 57.0) internal successors, (513), 9 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:05,949 INFO L185 Difference]: Start difference. First operand has 343 places, 598 transitions, 13440 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:48:05,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 625 transitions, 15354 flow [2021-03-25 07:48:06,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 625 transitions, 15213 flow, removed 52 selfloop flow, removed 1 redundant places. [2021-03-25 07:48:06,183 INFO L241 Difference]: Finished difference. Result has 355 places, 619 transitions, 14444 flow [2021-03-25 07:48:06,184 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=13299, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14444, PETRI_PLACES=355, PETRI_TRANSITIONS=619} [2021-03-25 07:48:06,184 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 324 predicate places. [2021-03-25 07:48:06,184 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:06,184 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 355 places, 619 transitions, 14444 flow [2021-03-25 07:48:06,185 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 355 places, 619 transitions, 14444 flow [2021-03-25 07:48:06,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 355 places, 619 transitions, 14444 flow [2021-03-25 07:48:06,400 INFO L129 PetriNetUnfolder]: 479/1161 cut-off events. [2021-03-25 07:48:06,400 INFO L130 PetriNetUnfolder]: For 43726/44113 co-relation queries the response was YES. [2021-03-25 07:48:06,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13023 conditions, 1161 events. 479/1161 cut-off events. For 43726/44113 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 8841 event pairs, 13 based on Foata normal form. 42/1199 useless extension candidates. Maximal degree in co-relation 12835. Up to 330 conditions per place. [2021-03-25 07:48:06,420 INFO L142 LiptonReduction]: Number of co-enabled transitions 990 [2021-03-25 07:48:06,458 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:06,459 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:06,459 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 275 [2021-03-25 07:48:06,459 INFO L480 AbstractCegarLoop]: Abstraction has has 355 places, 619 transitions, 14444 flow [2021-03-25 07:48:06,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:06,459 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:06,459 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:06,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-25 07:48:06,460 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:06,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:06,460 INFO L82 PathProgramCache]: Analyzing trace with hash 673199645, now seen corresponding path program 17 times [2021-03-25 07:48:06,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:06,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930018630] [2021-03-25 07:48:06,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:06,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:06,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:06,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:06,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:06,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:06,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:06,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:06,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:06,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:06,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:06,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:06,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:06,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:06,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:06,521 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:06,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:06,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930018630] [2021-03-25 07:48:06,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:06,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:06,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848723912] [2021-03-25 07:48:06,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:06,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:06,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:06,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:06,525 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 57 [2021-03-25 07:48:06,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 619 transitions, 14444 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:06,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:06,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 57 [2021-03-25 07:48:06,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:07,028 INFO L129 PetriNetUnfolder]: 654/1454 cut-off events. [2021-03-25 07:48:07,028 INFO L130 PetriNetUnfolder]: For 55136/55136 co-relation queries the response was YES. [2021-03-25 07:48:07,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17453 conditions, 1454 events. 654/1454 cut-off events. For 55136/55136 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 10493 event pairs, 9 based on Foata normal form. 1/1455 useless extension candidates. Maximal degree in co-relation 17262. Up to 1157 conditions per place. [2021-03-25 07:48:07,047 INFO L132 encePairwiseOnDemand]: 48/57 looper letters, 547 selfloop transitions, 87 changer transitions 3/642 dead transitions. [2021-03-25 07:48:07,047 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 642 transitions, 16231 flow [2021-03-25 07:48:07,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:07,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:07,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:48:07,048 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2021-03-25 07:48:07,048 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:48:07,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:48:07,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:07,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:48:07,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:07,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 57.0) internal successors, (513), 9 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:07,049 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 57.0) internal successors, (513), 9 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:07,050 INFO L185 Difference]: Start difference. First operand has 355 places, 619 transitions, 14444 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:48:07,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 642 transitions, 16231 flow [2021-03-25 07:48:07,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 642 transitions, 16070 flow, removed 62 selfloop flow, removed 1 redundant places. [2021-03-25 07:48:07,298 INFO L241 Difference]: Finished difference. Result has 365 places, 634 transitions, 14944 flow [2021-03-25 07:48:07,299 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=14283, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14944, PETRI_PLACES=365, PETRI_TRANSITIONS=634} [2021-03-25 07:48:07,299 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 334 predicate places. [2021-03-25 07:48:07,299 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:07,299 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 365 places, 634 transitions, 14944 flow [2021-03-25 07:48:07,299 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 365 places, 634 transitions, 14944 flow [2021-03-25 07:48:07,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 365 places, 634 transitions, 14944 flow [2021-03-25 07:48:07,463 INFO L129 PetriNetUnfolder]: 484/1094 cut-off events. [2021-03-25 07:48:07,463 INFO L130 PetriNetUnfolder]: For 43420/43762 co-relation queries the response was YES. [2021-03-25 07:48:07,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12689 conditions, 1094 events. 484/1094 cut-off events. For 43420/43762 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 7895 event pairs, 14 based on Foata normal form. 42/1132 useless extension candidates. Maximal degree in co-relation 12496. Up to 315 conditions per place. [2021-03-25 07:48:07,482 INFO L142 LiptonReduction]: Number of co-enabled transitions 972 [2021-03-25 07:48:07,609 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:07,609 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:48:07,609 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 310 [2021-03-25 07:48:07,610 INFO L480 AbstractCegarLoop]: Abstraction has has 365 places, 634 transitions, 15011 flow [2021-03-25 07:48:07,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:07,610 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:07,610 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:07,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-25 07:48:07,610 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:07,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:07,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1121385814, now seen corresponding path program 1 times [2021-03-25 07:48:07,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:07,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707746192] [2021-03-25 07:48:07,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:07,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:07,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:07,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:07,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:07,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:07,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:07,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:07,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:07,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:07,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:07,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:07,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:07,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:07,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:07,655 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:07,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:07,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:07,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707746192] [2021-03-25 07:48:07,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:07,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:48:07,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265781190] [2021-03-25 07:48:07,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:48:07,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:07,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:48:07,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:48:07,659 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 58 [2021-03-25 07:48:07,659 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 634 transitions, 15011 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:07,659 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:07,659 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 58 [2021-03-25 07:48:07,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:08,121 INFO L129 PetriNetUnfolder]: 637/1355 cut-off events. [2021-03-25 07:48:08,122 INFO L130 PetriNetUnfolder]: For 55697/55712 co-relation queries the response was YES. [2021-03-25 07:48:08,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16597 conditions, 1355 events. 637/1355 cut-off events. For 55697/55712 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 9393 event pairs, 97 based on Foata normal form. 15/1369 useless extension candidates. Maximal degree in co-relation 16269. Up to 1142 conditions per place. [2021-03-25 07:48:08,141 INFO L132 encePairwiseOnDemand]: 49/58 looper letters, 593 selfloop transitions, 38 changer transitions 4/640 dead transitions. [2021-03-25 07:48:08,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 640 transitions, 16341 flow [2021-03-25 07:48:08,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:48:08,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:48:08,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2021-03-25 07:48:08,142 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5775862068965517 [2021-03-25 07:48:08,142 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 201 transitions. [2021-03-25 07:48:08,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 201 transitions. [2021-03-25 07:48:08,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:08,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 201 transitions. [2021-03-25 07:48:08,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:08,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 58.0) internal successors, (406), 7 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:08,143 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 58.0) internal successors, (406), 7 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:08,143 INFO L185 Difference]: Start difference. First operand has 365 places, 634 transitions, 15011 flow. Second operand 6 states and 201 transitions. [2021-03-25 07:48:08,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 640 transitions, 16341 flow [2021-03-25 07:48:08,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 640 transitions, 15962 flow, removed 169 selfloop flow, removed 2 redundant places. [2021-03-25 07:48:08,419 INFO L241 Difference]: Finished difference. Result has 370 places, 632 transitions, 14686 flow [2021-03-25 07:48:08,419 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=14632, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=596, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=14686, PETRI_PLACES=370, PETRI_TRANSITIONS=632} [2021-03-25 07:48:08,419 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 339 predicate places. [2021-03-25 07:48:08,419 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:08,419 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 370 places, 632 transitions, 14686 flow [2021-03-25 07:48:08,420 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 370 places, 632 transitions, 14686 flow [2021-03-25 07:48:08,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 370 places, 632 transitions, 14686 flow [2021-03-25 07:48:08,586 INFO L129 PetriNetUnfolder]: 483/1117 cut-off events. [2021-03-25 07:48:08,586 INFO L130 PetriNetUnfolder]: For 39945/40195 co-relation queries the response was YES. [2021-03-25 07:48:08,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12549 conditions, 1117 events. 483/1117 cut-off events. For 39945/40195 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 8195 event pairs, 11 based on Foata normal form. 40/1154 useless extension candidates. Maximal degree in co-relation 12354. Up to 311 conditions per place. [2021-03-25 07:48:08,606 INFO L142 LiptonReduction]: Number of co-enabled transitions 964 [2021-03-25 07:48:08,650 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:08,650 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:08,650 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 231 [2021-03-25 07:48:08,650 INFO L480 AbstractCegarLoop]: Abstraction has has 370 places, 632 transitions, 14686 flow [2021-03-25 07:48:08,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:08,651 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:08,651 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:08,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-25 07:48:08,651 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:08,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:08,651 INFO L82 PathProgramCache]: Analyzing trace with hash 819246461, now seen corresponding path program 10 times [2021-03-25 07:48:08,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:08,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506677502] [2021-03-25 07:48:08,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:08,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:08,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:08,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:08,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:08,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:08,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:08,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:08,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:08,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:08,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:08,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:08,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:08,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:08,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:08,706 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:08,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:08,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:08,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506677502] [2021-03-25 07:48:08,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:08,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:08,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096989238] [2021-03-25 07:48:08,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:08,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:08,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:08,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:08,710 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 58 [2021-03-25 07:48:08,711 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 632 transitions, 14686 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:08,711 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:08,711 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 58 [2021-03-25 07:48:08,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:09,190 INFO L129 PetriNetUnfolder]: 531/1209 cut-off events. [2021-03-25 07:48:09,190 INFO L130 PetriNetUnfolder]: For 54089/54176 co-relation queries the response was YES. [2021-03-25 07:48:09,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14863 conditions, 1209 events. 531/1209 cut-off events. For 54089/54176 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 8682 event pairs, 13 based on Foata normal form. 79/1288 useless extension candidates. Maximal degree in co-relation 14249. Up to 876 conditions per place. [2021-03-25 07:48:09,204 INFO L132 encePairwiseOnDemand]: 49/58 looper letters, 559 selfloop transitions, 111 changer transitions 8/683 dead transitions. [2021-03-25 07:48:09,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 683 transitions, 16947 flow [2021-03-25 07:48:09,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:09,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:48:09,205 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5668103448275862 [2021-03-25 07:48:09,205 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:48:09,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:48:09,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:09,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:48:09,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:09,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 58.0) internal successors, (522), 9 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:09,207 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 58.0) internal successors, (522), 9 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:09,207 INFO L185 Difference]: Start difference. First operand has 370 places, 632 transitions, 14686 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:48:09,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 683 transitions, 16947 flow [2021-03-25 07:48:09,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 683 transitions, 16872 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-25 07:48:09,434 INFO L241 Difference]: Finished difference. Result has 378 places, 671 transitions, 15681 flow [2021-03-25 07:48:09,435 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=14611, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15681, PETRI_PLACES=378, PETRI_TRANSITIONS=671} [2021-03-25 07:48:09,435 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 347 predicate places. [2021-03-25 07:48:09,435 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:09,435 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 378 places, 671 transitions, 15681 flow [2021-03-25 07:48:09,435 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 378 places, 671 transitions, 15681 flow [2021-03-25 07:48:09,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 378 places, 671 transitions, 15681 flow [2021-03-25 07:48:09,623 INFO L129 PetriNetUnfolder]: 510/1192 cut-off events. [2021-03-25 07:48:09,623 INFO L130 PetriNetUnfolder]: For 44556/44788 co-relation queries the response was YES. [2021-03-25 07:48:09,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13461 conditions, 1192 events. 510/1192 cut-off events. For 44556/44788 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 8922 event pairs, 12 based on Foata normal form. 10/1199 useless extension candidates. Maximal degree in co-relation 13262. Up to 335 conditions per place. [2021-03-25 07:48:09,646 INFO L142 LiptonReduction]: Number of co-enabled transitions 1044 [2021-03-25 07:48:09,698 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:09,698 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:09,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 263 [2021-03-25 07:48:09,698 INFO L480 AbstractCegarLoop]: Abstraction has has 378 places, 671 transitions, 15681 flow [2021-03-25 07:48:09,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:09,699 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:09,699 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:09,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-25 07:48:09,699 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:09,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:09,699 INFO L82 PathProgramCache]: Analyzing trace with hash 778645564, now seen corresponding path program 2 times [2021-03-25 07:48:09,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:09,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156453511] [2021-03-25 07:48:09,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:09,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:09,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:09,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:09,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:09,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:09,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:09,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:09,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:09,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:09,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:09,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:09,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:09,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:09,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:09,736 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:09,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:09,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:09,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156453511] [2021-03-25 07:48:09,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:09,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:48:09,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726104194] [2021-03-25 07:48:09,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:48:09,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:09,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:48:09,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:48:09,739 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 58 [2021-03-25 07:48:09,740 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 671 transitions, 15681 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:09,740 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:09,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 58 [2021-03-25 07:48:09,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:10,247 INFO L129 PetriNetUnfolder]: 685/1467 cut-off events. [2021-03-25 07:48:10,247 INFO L130 PetriNetUnfolder]: For 55685/55692 co-relation queries the response was YES. [2021-03-25 07:48:10,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17787 conditions, 1467 events. 685/1467 cut-off events. For 55685/55692 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 10448 event pairs, 7 based on Foata normal form. 8/1475 useless extension candidates. Maximal degree in co-relation 17448. Up to 1250 conditions per place. [2021-03-25 07:48:10,267 INFO L132 encePairwiseOnDemand]: 49/58 looper letters, 633 selfloop transitions, 37 changer transitions 3/678 dead transitions. [2021-03-25 07:48:10,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 678 transitions, 17157 flow [2021-03-25 07:48:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:48:10,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:48:10,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2021-03-25 07:48:10,268 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5747126436781609 [2021-03-25 07:48:10,268 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 200 transitions. [2021-03-25 07:48:10,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 200 transitions. [2021-03-25 07:48:10,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:10,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 200 transitions. [2021-03-25 07:48:10,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:10,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 58.0) internal successors, (406), 7 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:10,269 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 58.0) internal successors, (406), 7 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:10,269 INFO L185 Difference]: Start difference. First operand has 378 places, 671 transitions, 15681 flow. Second operand 6 states and 200 transitions. [2021-03-25 07:48:10,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 678 transitions, 17157 flow [2021-03-25 07:48:10,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 678 transitions, 16961 flow, removed 98 selfloop flow, removed 0 redundant places. [2021-03-25 07:48:10,562 INFO L241 Difference]: Finished difference. Result has 386 places, 672 transitions, 15643 flow [2021-03-25 07:48:10,563 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=15485, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=15643, PETRI_PLACES=386, PETRI_TRANSITIONS=672} [2021-03-25 07:48:10,563 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 355 predicate places. [2021-03-25 07:48:10,563 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:10,563 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 386 places, 672 transitions, 15643 flow [2021-03-25 07:48:10,563 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 386 places, 672 transitions, 15643 flow [2021-03-25 07:48:10,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 386 places, 672 transitions, 15643 flow [2021-03-25 07:48:10,773 INFO L129 PetriNetUnfolder]: 510/1201 cut-off events. [2021-03-25 07:48:10,773 INFO L130 PetriNetUnfolder]: For 44750/44958 co-relation queries the response was YES. [2021-03-25 07:48:10,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13492 conditions, 1201 events. 510/1201 cut-off events. For 44750/44958 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 9069 event pairs, 10 based on Foata normal form. 43/1242 useless extension candidates. Maximal degree in co-relation 13288. Up to 334 conditions per place. [2021-03-25 07:48:10,796 INFO L142 LiptonReduction]: Number of co-enabled transitions 1046 [2021-03-25 07:48:10,842 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:10,843 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:10,843 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 280 [2021-03-25 07:48:10,843 INFO L480 AbstractCegarLoop]: Abstraction has has 386 places, 672 transitions, 15643 flow [2021-03-25 07:48:10,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:10,843 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:10,843 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:10,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-25 07:48:10,843 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:10,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:10,844 INFO L82 PathProgramCache]: Analyzing trace with hash -911913118, now seen corresponding path program 3 times [2021-03-25 07:48:10,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:10,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712604129] [2021-03-25 07:48:10,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:10,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:10,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:10,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:10,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:10,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:10,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:10,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:10,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:10,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:10,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:10,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:10,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:10,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:10,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:10,879 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:10,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:10,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:10,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712604129] [2021-03-25 07:48:10,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:10,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:48:10,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215100768] [2021-03-25 07:48:10,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:48:10,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:10,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:48:10,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:48:10,883 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 58 [2021-03-25 07:48:10,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 672 transitions, 15643 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:10,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:10,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 58 [2021-03-25 07:48:10,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:11,357 INFO L129 PetriNetUnfolder]: 685/1469 cut-off events. [2021-03-25 07:48:11,357 INFO L130 PetriNetUnfolder]: For 63026/63041 co-relation queries the response was YES. [2021-03-25 07:48:11,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17806 conditions, 1469 events. 685/1469 cut-off events. For 63026/63041 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 10413 event pairs, 7 based on Foata normal form. 15/1484 useless extension candidates. Maximal degree in co-relation 17459. Up to 1223 conditions per place. [2021-03-25 07:48:11,379 INFO L132 encePairwiseOnDemand]: 49/58 looper letters, 631 selfloop transitions, 39 changer transitions 7/682 dead transitions. [2021-03-25 07:48:11,379 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 682 transitions, 17155 flow [2021-03-25 07:48:11,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:48:11,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:48:11,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2021-03-25 07:48:11,380 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5775862068965517 [2021-03-25 07:48:11,380 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 201 transitions. [2021-03-25 07:48:11,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 201 transitions. [2021-03-25 07:48:11,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:11,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 201 transitions. [2021-03-25 07:48:11,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:11,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 58.0) internal successors, (406), 7 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:11,381 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 58.0) internal successors, (406), 7 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:11,381 INFO L185 Difference]: Start difference. First operand has 386 places, 672 transitions, 15643 flow. Second operand 6 states and 201 transitions. [2021-03-25 07:48:11,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 682 transitions, 17155 flow [2021-03-25 07:48:11,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 682 transitions, 17077 flow, removed 18 selfloop flow, removed 2 redundant places. [2021-03-25 07:48:11,704 INFO L241 Difference]: Finished difference. Result has 392 places, 671 transitions, 15629 flow [2021-03-25 07:48:11,705 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=15565, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=15629, PETRI_PLACES=392, PETRI_TRANSITIONS=671} [2021-03-25 07:48:11,705 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 361 predicate places. [2021-03-25 07:48:11,705 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:11,705 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 392 places, 671 transitions, 15629 flow [2021-03-25 07:48:11,705 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 392 places, 671 transitions, 15629 flow [2021-03-25 07:48:11,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 392 places, 671 transitions, 15629 flow [2021-03-25 07:48:11,893 INFO L129 PetriNetUnfolder]: 509/1192 cut-off events. [2021-03-25 07:48:11,894 INFO L130 PetriNetUnfolder]: For 47596/47970 co-relation queries the response was YES. [2021-03-25 07:48:11,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13525 conditions, 1192 events. 509/1192 cut-off events. For 47596/47970 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 8931 event pairs, 11 based on Foata normal form. 41/1230 useless extension candidates. Maximal degree in co-relation 13318. Up to 332 conditions per place. [2021-03-25 07:48:11,919 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-25 07:48:11,968 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:11,968 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:11,968 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 263 [2021-03-25 07:48:11,968 INFO L480 AbstractCegarLoop]: Abstraction has has 392 places, 671 transitions, 15629 flow [2021-03-25 07:48:11,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:11,968 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:11,968 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:11,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-25 07:48:11,969 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:11,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:11,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1802537134, now seen corresponding path program 4 times [2021-03-25 07:48:11,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:11,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30015143] [2021-03-25 07:48:11,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:11,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:11,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:11,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:11,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:11,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:11,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:11,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:11,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:11,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:11,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:12,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:12,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:12,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:12,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:12,015 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:12,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:12,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30015143] [2021-03-25 07:48:12,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:12,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:12,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265123044] [2021-03-25 07:48:12,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:12,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:12,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:12,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:12,019 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 58 [2021-03-25 07:48:12,019 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 671 transitions, 15629 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:12,019 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:12,019 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 58 [2021-03-25 07:48:12,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:12,488 INFO L129 PetriNetUnfolder]: 683/1461 cut-off events. [2021-03-25 07:48:12,488 INFO L130 PetriNetUnfolder]: For 57998/58013 co-relation queries the response was YES. [2021-03-25 07:48:12,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17828 conditions, 1461 events. 683/1461 cut-off events. For 57998/58013 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 10356 event pairs, 15 based on Foata normal form. 15/1476 useless extension candidates. Maximal degree in co-relation 17476. Up to 1176 conditions per place. [2021-03-25 07:48:12,509 INFO L132 encePairwiseOnDemand]: 49/58 looper letters, 602 selfloop transitions, 71 changer transitions 4/682 dead transitions. [2021-03-25 07:48:12,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 682 transitions, 17121 flow [2021-03-25 07:48:12,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:12,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:48:12,510 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5738916256157636 [2021-03-25 07:48:12,510 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:48:12,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:48:12,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:12,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:48:12,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:12,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 58.0) internal successors, (464), 8 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:12,511 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 58.0) internal successors, (464), 8 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:12,511 INFO L185 Difference]: Start difference. First operand has 392 places, 671 transitions, 15629 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:48:12,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 682 transitions, 17121 flow [2021-03-25 07:48:12,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 682 transitions, 17083 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 07:48:12,812 INFO L241 Difference]: Finished difference. Result has 399 places, 673 transitions, 15824 flow [2021-03-25 07:48:12,812 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=15591, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=15824, PETRI_PLACES=399, PETRI_TRANSITIONS=673} [2021-03-25 07:48:12,812 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 368 predicate places. [2021-03-25 07:48:12,812 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:12,812 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 399 places, 673 transitions, 15824 flow [2021-03-25 07:48:12,813 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 399 places, 673 transitions, 15824 flow [2021-03-25 07:48:12,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 399 places, 673 transitions, 15824 flow [2021-03-25 07:48:13,006 INFO L129 PetriNetUnfolder]: 509/1178 cut-off events. [2021-03-25 07:48:13,006 INFO L130 PetriNetUnfolder]: For 50791/51291 co-relation queries the response was YES. [2021-03-25 07:48:13,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13639 conditions, 1178 events. 509/1178 cut-off events. For 50791/51291 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 8725 event pairs, 12 based on Foata normal form. 42/1215 useless extension candidates. Maximal degree in co-relation 13429. Up to 331 conditions per place. [2021-03-25 07:48:13,030 INFO L142 LiptonReduction]: Number of co-enabled transitions 1044 [2021-03-25 07:48:13,079 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:13,079 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:13,079 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 267 [2021-03-25 07:48:13,079 INFO L480 AbstractCegarLoop]: Abstraction has has 399 places, 673 transitions, 15824 flow [2021-03-25 07:48:13,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:13,080 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:13,080 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:13,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-25 07:48:13,080 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:13,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:13,080 INFO L82 PathProgramCache]: Analyzing trace with hash -2128885548, now seen corresponding path program 5 times [2021-03-25 07:48:13,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:13,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928541828] [2021-03-25 07:48:13,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:13,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:13,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:13,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:13,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:13,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:13,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:13,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:13,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:13,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:13,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:13,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:13,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:13,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:13,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:13,124 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:13,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:13,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:13,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928541828] [2021-03-25 07:48:13,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:13,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:13,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092733621] [2021-03-25 07:48:13,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:13,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:13,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:13,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:13,128 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 58 [2021-03-25 07:48:13,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 673 transitions, 15824 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:13,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:13,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 58 [2021-03-25 07:48:13,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:13,658 INFO L129 PetriNetUnfolder]: 689/1476 cut-off events. [2021-03-25 07:48:13,659 INFO L130 PetriNetUnfolder]: For 59632/59647 co-relation queries the response was YES. [2021-03-25 07:48:13,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18159 conditions, 1476 events. 689/1476 cut-off events. For 59632/59647 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 10488 event pairs, 13 based on Foata normal form. 15/1491 useless extension candidates. Maximal degree in co-relation 17802. Up to 1207 conditions per place. [2021-03-25 07:48:13,687 INFO L132 encePairwiseOnDemand]: 49/58 looper letters, 615 selfloop transitions, 66 changer transitions 11/697 dead transitions. [2021-03-25 07:48:13,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 697 transitions, 17648 flow [2021-03-25 07:48:13,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:13,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:13,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:48:13,688 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2021-03-25 07:48:13,688 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:48:13,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:48:13,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:13,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:48:13,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:13,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 58.0) internal successors, (464), 8 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:13,689 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 58.0) internal successors, (464), 8 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:13,689 INFO L185 Difference]: Start difference. First operand has 399 places, 673 transitions, 15824 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:48:13,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 697 transitions, 17648 flow [2021-03-25 07:48:14,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 697 transitions, 17548 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-25 07:48:14,024 INFO L241 Difference]: Finished difference. Result has 406 places, 682 transitions, 15952 flow [2021-03-25 07:48:14,024 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=15728, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=607, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=15952, PETRI_PLACES=406, PETRI_TRANSITIONS=682} [2021-03-25 07:48:14,024 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 375 predicate places. [2021-03-25 07:48:14,024 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:14,024 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 406 places, 682 transitions, 15952 flow [2021-03-25 07:48:14,025 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 406 places, 682 transitions, 15952 flow [2021-03-25 07:48:14,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 406 places, 682 transitions, 15952 flow [2021-03-25 07:48:14,237 INFO L129 PetriNetUnfolder]: 514/1210 cut-off events. [2021-03-25 07:48:14,238 INFO L130 PetriNetUnfolder]: For 46609/46755 co-relation queries the response was YES. [2021-03-25 07:48:14,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13763 conditions, 1210 events. 514/1210 cut-off events. For 46609/46755 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 9176 event pairs, 11 based on Foata normal form. 10/1218 useless extension candidates. Maximal degree in co-relation 13548. Up to 331 conditions per place. [2021-03-25 07:48:14,264 INFO L142 LiptonReduction]: Number of co-enabled transitions 1060 [2021-03-25 07:48:14,399 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 07:48:14,399 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:48:14,399 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 375 [2021-03-25 07:48:14,399 INFO L480 AbstractCegarLoop]: Abstraction has has 406 places, 682 transitions, 15990 flow [2021-03-25 07:48:14,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:14,400 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:14,400 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:14,400 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-25 07:48:14,400 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:14,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:14,400 INFO L82 PathProgramCache]: Analyzing trace with hash -2087296624, now seen corresponding path program 6 times [2021-03-25 07:48:14,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:14,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382224435] [2021-03-25 07:48:14,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:14,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:14,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:14,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:14,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:14,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:14,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:14,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:14,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:14,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:14,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:14,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:14,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:14,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:14,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:14,453 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:14,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:14,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:14,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382224435] [2021-03-25 07:48:14,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:14,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:14,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790784173] [2021-03-25 07:48:14,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:14,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:14,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:14,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:14,457 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:14,457 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 682 transitions, 15990 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:14,457 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:14,457 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:14,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:15,103 INFO L129 PetriNetUnfolder]: 685/1461 cut-off events. [2021-03-25 07:48:15,104 INFO L130 PetriNetUnfolder]: For 58854/58869 co-relation queries the response was YES. [2021-03-25 07:48:15,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18111 conditions, 1461 events. 685/1461 cut-off events. For 58854/58869 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 10336 event pairs, 14 based on Foata normal form. 15/1474 useless extension candidates. Maximal degree in co-relation 17746. Up to 1147 conditions per place. [2021-03-25 07:48:15,121 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 564 selfloop transitions, 116 changer transitions 7/692 dead transitions. [2021-03-25 07:48:15,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 692 transitions, 17568 flow [2021-03-25 07:48:15,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:15,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:15,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:48:15,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5614406779661016 [2021-03-25 07:48:15,122 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:48:15,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:48:15,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:15,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:48:15,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:15,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:15,124 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:15,124 INFO L185 Difference]: Start difference. First operand has 406 places, 682 transitions, 15990 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:48:15,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 692 transitions, 17568 flow [2021-03-25 07:48:15,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 692 transitions, 17430 flow, removed 32 selfloop flow, removed 6 redundant places. [2021-03-25 07:48:15,468 INFO L241 Difference]: Finished difference. Result has 411 places, 680 transitions, 16187 flow [2021-03-25 07:48:15,468 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=15880, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=16187, PETRI_PLACES=411, PETRI_TRANSITIONS=680} [2021-03-25 07:48:15,469 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 380 predicate places. [2021-03-25 07:48:15,469 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:15,469 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 411 places, 680 transitions, 16187 flow [2021-03-25 07:48:15,469 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 411 places, 680 transitions, 16187 flow [2021-03-25 07:48:15,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 411 places, 680 transitions, 16187 flow [2021-03-25 07:48:15,669 INFO L129 PetriNetUnfolder]: 513/1203 cut-off events. [2021-03-25 07:48:15,669 INFO L130 PetriNetUnfolder]: For 47411/47557 co-relation queries the response was YES. [2021-03-25 07:48:15,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13900 conditions, 1203 events. 513/1203 cut-off events. For 47411/47557 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 8990 event pairs, 15 based on Foata normal form. 10/1210 useless extension candidates. Maximal degree in co-relation 13684. Up to 330 conditions per place. [2021-03-25 07:48:15,698 INFO L142 LiptonReduction]: Number of co-enabled transitions 1056 [2021-03-25 07:48:15,749 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:15,749 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:15,749 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 280 [2021-03-25 07:48:15,749 INFO L480 AbstractCegarLoop]: Abstraction has has 411 places, 680 transitions, 16187 flow [2021-03-25 07:48:15,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:15,750 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:15,750 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:15,750 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-25 07:48:15,750 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:15,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:15,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1763432910, now seen corresponding path program 1 times [2021-03-25 07:48:15,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:15,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392699758] [2021-03-25 07:48:15,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:15,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:15,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:15,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:15,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:15,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:15,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:15,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:15,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:15,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:15,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:15,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:15,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:15,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:15,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:15,787 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:15,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:15,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:15,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392699758] [2021-03-25 07:48:15,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:15,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:48:15,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259501004] [2021-03-25 07:48:15,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:48:15,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:15,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:48:15,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:48:15,792 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:15,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 680 transitions, 16187 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:15,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:15,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:15,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:16,330 INFO L129 PetriNetUnfolder]: 699/1486 cut-off events. [2021-03-25 07:48:16,331 INFO L130 PetriNetUnfolder]: For 63429/63429 co-relation queries the response was YES. [2021-03-25 07:48:16,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18813 conditions, 1486 events. 699/1486 cut-off events. For 63429/63429 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 10421 event pairs, 7 based on Foata normal form. 1/1487 useless extension candidates. Maximal degree in co-relation 18594. Up to 1268 conditions per place. [2021-03-25 07:48:16,354 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 642 selfloop transitions, 41 changer transitions 4/692 dead transitions. [2021-03-25 07:48:16,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 692 transitions, 17829 flow [2021-03-25 07:48:16,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:48:16,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:48:16,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:48:16,355 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5706214689265536 [2021-03-25 07:48:16,355 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:48:16,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:48:16,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:16,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:48:16,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:16,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:16,356 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:16,356 INFO L185 Difference]: Start difference. First operand has 411 places, 680 transitions, 16187 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:48:16,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 692 transitions, 17829 flow [2021-03-25 07:48:16,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 692 transitions, 17500 flow, removed 9 selfloop flow, removed 10 redundant places. [2021-03-25 07:48:16,731 INFO L241 Difference]: Finished difference. Result has 410 places, 684 transitions, 16139 flow [2021-03-25 07:48:16,731 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=15866, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=680, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=16139, PETRI_PLACES=410, PETRI_TRANSITIONS=684} [2021-03-25 07:48:16,731 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 379 predicate places. [2021-03-25 07:48:16,731 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:16,731 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 410 places, 684 transitions, 16139 flow [2021-03-25 07:48:16,731 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 410 places, 684 transitions, 16139 flow [2021-03-25 07:48:16,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 410 places, 684 transitions, 16139 flow [2021-03-25 07:48:16,966 INFO L129 PetriNetUnfolder]: 515/1197 cut-off events. [2021-03-25 07:48:16,966 INFO L130 PetriNetUnfolder]: For 49808/50125 co-relation queries the response was YES. [2021-03-25 07:48:16,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13880 conditions, 1197 events. 515/1197 cut-off events. For 49808/50125 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 8971 event pairs, 9 based on Foata normal form. 40/1234 useless extension candidates. Maximal degree in co-relation 13663. Up to 332 conditions per place. [2021-03-25 07:48:16,999 INFO L142 LiptonReduction]: Number of co-enabled transitions 1064 [2021-03-25 07:48:17,047 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:17,048 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:17,048 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 317 [2021-03-25 07:48:17,048 INFO L480 AbstractCegarLoop]: Abstraction has has 410 places, 684 transitions, 16139 flow [2021-03-25 07:48:17,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:17,048 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:17,048 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:17,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-25 07:48:17,049 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:17,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:17,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1741519156, now seen corresponding path program 2 times [2021-03-25 07:48:17,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:17,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586469950] [2021-03-25 07:48:17,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:17,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:17,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:17,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:17,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:17,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:17,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:17,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:17,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:17,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:17,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:17,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:17,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:17,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:17,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:17,091 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:17,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:17,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:17,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586469950] [2021-03-25 07:48:17,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:17,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:48:17,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596612935] [2021-03-25 07:48:17,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:48:17,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:17,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:48:17,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:48:17,095 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:17,096 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 684 transitions, 16139 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:17,096 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:17,096 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:17,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:17,613 INFO L129 PetriNetUnfolder]: 698/1491 cut-off events. [2021-03-25 07:48:17,613 INFO L130 PetriNetUnfolder]: For 66655/66655 co-relation queries the response was YES. [2021-03-25 07:48:17,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18714 conditions, 1491 events. 698/1491 cut-off events. For 66655/66655 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 10504 event pairs, 12 based on Foata normal form. 1/1492 useless extension candidates. Maximal degree in co-relation 18494. Up to 1246 conditions per place. [2021-03-25 07:48:17,635 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 638 selfloop transitions, 47 changer transitions 5/695 dead transitions. [2021-03-25 07:48:17,636 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 695 transitions, 17740 flow [2021-03-25 07:48:17,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:48:17,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:48:17,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 203 transitions. [2021-03-25 07:48:17,636 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5734463276836158 [2021-03-25 07:48:17,637 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 203 transitions. [2021-03-25 07:48:17,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 203 transitions. [2021-03-25 07:48:17,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:17,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 203 transitions. [2021-03-25 07:48:17,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.833333333333336) internal successors, (203), 6 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:17,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:17,637 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:17,637 INFO L185 Difference]: Start difference. First operand has 410 places, 684 transitions, 16139 flow. Second operand 6 states and 203 transitions. [2021-03-25 07:48:17,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 695 transitions, 17740 flow [2021-03-25 07:48:18,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 695 transitions, 17629 flow, removed 47 selfloop flow, removed 1 redundant places. [2021-03-25 07:48:18,049 INFO L241 Difference]: Finished difference. Result has 417 places, 685 transitions, 16211 flow [2021-03-25 07:48:18,049 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=16028, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=16211, PETRI_PLACES=417, PETRI_TRANSITIONS=685} [2021-03-25 07:48:18,049 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 386 predicate places. [2021-03-25 07:48:18,049 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:18,049 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 417 places, 685 transitions, 16211 flow [2021-03-25 07:48:18,050 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 417 places, 685 transitions, 16211 flow [2021-03-25 07:48:18,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 417 places, 685 transitions, 16211 flow [2021-03-25 07:48:18,262 INFO L129 PetriNetUnfolder]: 513/1203 cut-off events. [2021-03-25 07:48:18,262 INFO L130 PetriNetUnfolder]: For 50723/50983 co-relation queries the response was YES. [2021-03-25 07:48:18,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13998 conditions, 1203 events. 513/1203 cut-off events. For 50723/50983 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 9043 event pairs, 10 based on Foata normal form. 10/1210 useless extension candidates. Maximal degree in co-relation 13777. Up to 330 conditions per place. [2021-03-25 07:48:18,290 INFO L142 LiptonReduction]: Number of co-enabled transitions 1066 [2021-03-25 07:48:18,349 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:18,349 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:18,349 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 300 [2021-03-25 07:48:18,349 INFO L480 AbstractCegarLoop]: Abstraction has has 417 places, 685 transitions, 16211 flow [2021-03-25 07:48:18,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:18,350 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:18,350 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:18,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-25 07:48:18,350 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:18,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:18,350 INFO L82 PathProgramCache]: Analyzing trace with hash -30905848, now seen corresponding path program 3 times [2021-03-25 07:48:18,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:18,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532299017] [2021-03-25 07:48:18,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:18,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:18,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:18,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:18,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:18,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:18,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:18,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:18,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:18,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:18,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:18,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:18,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:18,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:18,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:18,395 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:18,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:18,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532299017] [2021-03-25 07:48:18,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:18,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:18,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051812212] [2021-03-25 07:48:18,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:18,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:18,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:18,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:18,398 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:18,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 685 transitions, 16211 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:18,399 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:18,399 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:18,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:18,943 INFO L129 PetriNetUnfolder]: 696/1495 cut-off events. [2021-03-25 07:48:18,943 INFO L130 PetriNetUnfolder]: For 68821/68821 co-relation queries the response was YES. [2021-03-25 07:48:18,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18858 conditions, 1495 events. 696/1495 cut-off events. For 68821/68821 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 10581 event pairs, 14 based on Foata normal form. 1/1496 useless extension candidates. Maximal degree in co-relation 18634. Up to 1221 conditions per place. [2021-03-25 07:48:18,965 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 610 selfloop transitions, 76 changer transitions 4/695 dead transitions. [2021-03-25 07:48:18,965 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 695 transitions, 17777 flow [2021-03-25 07:48:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:18,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:18,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:48:18,966 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5665859564164649 [2021-03-25 07:48:18,966 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:48:18,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:48:18,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:18,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:48:18,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:18,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:18,967 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:18,967 INFO L185 Difference]: Start difference. First operand has 417 places, 685 transitions, 16211 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:48:18,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 695 transitions, 17777 flow [2021-03-25 07:48:19,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 695 transitions, 17718 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-25 07:48:19,314 INFO L241 Difference]: Finished difference. Result has 424 places, 686 transitions, 16412 flow [2021-03-25 07:48:19,315 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=16152, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=16412, PETRI_PLACES=424, PETRI_TRANSITIONS=686} [2021-03-25 07:48:19,315 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 393 predicate places. [2021-03-25 07:48:19,315 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:19,315 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 424 places, 686 transitions, 16412 flow [2021-03-25 07:48:19,315 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 424 places, 686 transitions, 16412 flow [2021-03-25 07:48:19,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 424 places, 686 transitions, 16412 flow [2021-03-25 07:48:19,524 INFO L129 PetriNetUnfolder]: 512/1209 cut-off events. [2021-03-25 07:48:19,524 INFO L130 PetriNetUnfolder]: For 53983/54310 co-relation queries the response was YES. [2021-03-25 07:48:19,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14213 conditions, 1209 events. 512/1209 cut-off events. For 53983/54310 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 9157 event pairs, 11 based on Foata normal form. 42/1248 useless extension candidates. Maximal degree in co-relation 13988. Up to 330 conditions per place. [2021-03-25 07:48:19,551 INFO L142 LiptonReduction]: Number of co-enabled transitions 1066 [2021-03-25 07:48:19,602 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:19,602 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:19,602 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 287 [2021-03-25 07:48:19,603 INFO L480 AbstractCegarLoop]: Abstraction has has 424 places, 686 transitions, 16412 flow [2021-03-25 07:48:19,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:19,603 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:19,603 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:19,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-25 07:48:19,603 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:19,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:19,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1467130696, now seen corresponding path program 7 times [2021-03-25 07:48:19,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:19,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793689537] [2021-03-25 07:48:19,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:19,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:19,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:19,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:19,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:19,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:19,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:19,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:19,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:19,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:19,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:19,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:19,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:19,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:19,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:19,638 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:19,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:19,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793689537] [2021-03-25 07:48:19,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:19,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:48:19,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089354979] [2021-03-25 07:48:19,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:48:19,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:19,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:48:19,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:48:19,642 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:19,642 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 686 transitions, 16412 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:19,642 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:19,642 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:19,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:20,162 INFO L129 PetriNetUnfolder]: 683/1475 cut-off events. [2021-03-25 07:48:20,163 INFO L130 PetriNetUnfolder]: For 80194/80213 co-relation queries the response was YES. [2021-03-25 07:48:20,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18657 conditions, 1475 events. 683/1475 cut-off events. For 80194/80213 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 10488 event pairs, 116 based on Foata normal form. 19/1494 useless extension candidates. Maximal degree in co-relation 18059. Up to 1248 conditions per place. [2021-03-25 07:48:20,185 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 648 selfloop transitions, 39 changer transitions 4/696 dead transitions. [2021-03-25 07:48:20,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 696 transitions, 18086 flow [2021-03-25 07:48:20,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:48:20,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:48:20,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:48:20,187 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5706214689265536 [2021-03-25 07:48:20,187 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:48:20,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:48:20,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:20,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:48:20,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:20,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:20,188 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:20,188 INFO L185 Difference]: Start difference. First operand has 424 places, 686 transitions, 16412 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:48:20,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 696 transitions, 18086 flow [2021-03-25 07:48:20,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 696 transitions, 17888 flow, removed 16 selfloop flow, removed 7 redundant places. [2021-03-25 07:48:20,565 INFO L241 Difference]: Finished difference. Result has 425 places, 688 transitions, 16468 flow [2021-03-25 07:48:20,565 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=16226, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=648, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=16468, PETRI_PLACES=425, PETRI_TRANSITIONS=688} [2021-03-25 07:48:20,566 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 394 predicate places. [2021-03-25 07:48:20,566 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:20,566 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 425 places, 688 transitions, 16468 flow [2021-03-25 07:48:20,566 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 425 places, 688 transitions, 16468 flow [2021-03-25 07:48:20,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 425 places, 688 transitions, 16468 flow [2021-03-25 07:48:20,784 INFO L129 PetriNetUnfolder]: 512/1214 cut-off events. [2021-03-25 07:48:20,784 INFO L130 PetriNetUnfolder]: For 50975/51125 co-relation queries the response was YES. [2021-03-25 07:48:20,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14205 conditions, 1214 events. 512/1214 cut-off events. For 50975/51125 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 9275 event pairs, 10 based on Foata normal form. 10/1222 useless extension candidates. Maximal degree in co-relation 13979. Up to 332 conditions per place. [2021-03-25 07:48:20,811 INFO L142 LiptonReduction]: Number of co-enabled transitions 1066 [2021-03-25 07:48:20,859 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:20,859 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:20,859 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 293 [2021-03-25 07:48:20,860 INFO L480 AbstractCegarLoop]: Abstraction has has 425 places, 688 transitions, 16468 flow [2021-03-25 07:48:20,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:20,860 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:20,860 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:20,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-25 07:48:20,860 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:20,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:20,861 INFO L82 PathProgramCache]: Analyzing trace with hash -964120313, now seen corresponding path program 11 times [2021-03-25 07:48:20,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:20,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539884731] [2021-03-25 07:48:20,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:20,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:20,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:20,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:20,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:20,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:20,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:20,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:20,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:20,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:20,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:20,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:20,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:20,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:20,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:20,912 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:20,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:20,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539884731] [2021-03-25 07:48:20,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:20,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:20,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675988894] [2021-03-25 07:48:20,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:20,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:20,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:20,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:20,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:20,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 688 transitions, 16468 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:20,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:20,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:20,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:21,407 INFO L129 PetriNetUnfolder]: 537/1244 cut-off events. [2021-03-25 07:48:21,407 INFO L130 PetriNetUnfolder]: For 67749/67836 co-relation queries the response was YES. [2021-03-25 07:48:21,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16441 conditions, 1244 events. 537/1244 cut-off events. For 67749/67836 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 9117 event pairs, 21 based on Foata normal form. 79/1323 useless extension candidates. Maximal degree in co-relation 16057. Up to 833 conditions per place. [2021-03-25 07:48:21,426 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 550 selfloop transitions, 131 changer transitions 20/706 dead transitions. [2021-03-25 07:48:21,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 706 transitions, 18401 flow [2021-03-25 07:48:21,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:21,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:21,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:48:21,427 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5572033898305084 [2021-03-25 07:48:21,427 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:48:21,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:48:21,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:21,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:48:21,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:21,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:21,428 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:21,428 INFO L185 Difference]: Start difference. First operand has 425 places, 688 transitions, 16468 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:48:21,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 706 transitions, 18401 flow [2021-03-25 07:48:21,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 706 transitions, 18283 flow, removed 37 selfloop flow, removed 3 redundant places. [2021-03-25 07:48:21,785 INFO L241 Difference]: Finished difference. Result has 430 places, 682 transitions, 16455 flow [2021-03-25 07:48:21,786 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=16350, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=16455, PETRI_PLACES=430, PETRI_TRANSITIONS=682} [2021-03-25 07:48:21,786 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 399 predicate places. [2021-03-25 07:48:21,786 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:21,786 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 430 places, 682 transitions, 16455 flow [2021-03-25 07:48:21,786 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 430 places, 682 transitions, 16455 flow [2021-03-25 07:48:21,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 430 places, 682 transitions, 16455 flow [2021-03-25 07:48:21,997 INFO L129 PetriNetUnfolder]: 510/1222 cut-off events. [2021-03-25 07:48:21,997 INFO L130 PetriNetUnfolder]: For 53823/54087 co-relation queries the response was YES. [2021-03-25 07:48:22,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14557 conditions, 1222 events. 510/1222 cut-off events. For 53823/54087 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 9359 event pairs, 11 based on Foata normal form. 9/1228 useless extension candidates. Maximal degree in co-relation 14330. Up to 333 conditions per place. [2021-03-25 07:48:22,024 INFO L142 LiptonReduction]: Number of co-enabled transitions 1074 [2021-03-25 07:48:22,076 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:22,076 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:22,076 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 290 [2021-03-25 07:48:22,076 INFO L480 AbstractCegarLoop]: Abstraction has has 430 places, 682 transitions, 16455 flow [2021-03-25 07:48:22,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:22,076 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:22,077 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:22,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-25 07:48:22,077 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:22,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:22,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1728229562, now seen corresponding path program 8 times [2021-03-25 07:48:22,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:22,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107087979] [2021-03-25 07:48:22,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:22,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:22,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:22,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:22,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:22,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:22,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:22,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:22,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:22,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:22,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:22,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:22,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:22,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:22,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:22,125 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:22,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:22,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107087979] [2021-03-25 07:48:22,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:22,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:22,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825874862] [2021-03-25 07:48:22,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:22,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:22,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:22,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:22,130 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:22,130 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 682 transitions, 16455 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:22,130 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:22,130 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:22,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:22,671 INFO L129 PetriNetUnfolder]: 698/1507 cut-off events. [2021-03-25 07:48:22,671 INFO L130 PetriNetUnfolder]: For 76891/76898 co-relation queries the response was YES. [2021-03-25 07:48:22,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19467 conditions, 1507 events. 698/1507 cut-off events. For 76891/76898 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 10793 event pairs, 7 based on Foata normal form. 8/1515 useless extension candidates. Maximal degree in co-relation 18869. Up to 1265 conditions per place. [2021-03-25 07:48:22,693 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 635 selfloop transitions, 64 changer transitions 4/708 dead transitions. [2021-03-25 07:48:22,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 708 transitions, 18465 flow [2021-03-25 07:48:22,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:22,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:22,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:48:22,694 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5641646489104116 [2021-03-25 07:48:22,694 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:48:22,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:48:22,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:22,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:48:22,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:22,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:22,695 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:22,695 INFO L185 Difference]: Start difference. First operand has 430 places, 682 transitions, 16455 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:48:22,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 708 transitions, 18465 flow [2021-03-25 07:48:23,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 708 transitions, 18119 flow, removed 114 selfloop flow, removed 9 redundant places. [2021-03-25 07:48:23,120 INFO L241 Difference]: Finished difference. Result has 432 places, 700 transitions, 16804 flow [2021-03-25 07:48:23,121 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=16113, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=620, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=16804, PETRI_PLACES=432, PETRI_TRANSITIONS=700} [2021-03-25 07:48:23,121 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 401 predicate places. [2021-03-25 07:48:23,121 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:23,121 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 432 places, 700 transitions, 16804 flow [2021-03-25 07:48:23,121 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 432 places, 700 transitions, 16804 flow [2021-03-25 07:48:23,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 432 places, 700 transitions, 16804 flow [2021-03-25 07:48:23,332 INFO L129 PetriNetUnfolder]: 520/1239 cut-off events. [2021-03-25 07:48:23,332 INFO L130 PetriNetUnfolder]: For 53196/53468 co-relation queries the response was YES. [2021-03-25 07:48:23,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14636 conditions, 1239 events. 520/1239 cut-off events. For 53196/53468 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 9468 event pairs, 13 based on Foata normal form. 39/1275 useless extension candidates. Maximal degree in co-relation 14408. Up to 334 conditions per place. [2021-03-25 07:48:23,361 INFO L142 LiptonReduction]: Number of co-enabled transitions 1078 [2021-03-25 07:48:23,442 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:23,442 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:23,442 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 321 [2021-03-25 07:48:23,443 INFO L480 AbstractCegarLoop]: Abstraction has has 432 places, 700 transitions, 16804 flow [2021-03-25 07:48:23,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:23,443 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:23,443 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:23,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-25 07:48:23,443 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:23,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:23,443 INFO L82 PathProgramCache]: Analyzing trace with hash 607661520, now seen corresponding path program 9 times [2021-03-25 07:48:23,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:23,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044101650] [2021-03-25 07:48:23,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:23,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:23,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:23,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:23,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:23,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:23,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:23,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:23,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:23,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:23,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:23,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:23,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:23,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:23,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:23,489 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:23,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:23,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:23,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044101650] [2021-03-25 07:48:23,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:23,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:23,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642100681] [2021-03-25 07:48:23,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:23,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:23,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:23,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:23,492 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:23,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 700 transitions, 16804 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:23,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:23,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:23,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:24,045 INFO L129 PetriNetUnfolder]: 700/1519 cut-off events. [2021-03-25 07:48:24,045 INFO L130 PetriNetUnfolder]: For 78292/78307 co-relation queries the response was YES. [2021-03-25 07:48:24,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19335 conditions, 1519 events. 700/1519 cut-off events. For 78292/78307 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 10950 event pairs, 70 based on Foata normal form. 15/1534 useless extension candidates. Maximal degree in co-relation 18948. Up to 1264 conditions per place. [2021-03-25 07:48:24,068 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 633 selfloop transitions, 71 changer transitions 4/713 dead transitions. [2021-03-25 07:48:24,068 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 713 transitions, 18560 flow [2021-03-25 07:48:24,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:24,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:24,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:48:24,069 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5641646489104116 [2021-03-25 07:48:24,069 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:48:24,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:48:24,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:24,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:48:24,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:24,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:24,070 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:24,070 INFO L185 Difference]: Start difference. First operand has 432 places, 700 transitions, 16804 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:48:24,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 713 transitions, 18560 flow [2021-03-25 07:48:24,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 713 transitions, 18358 flow, removed 101 selfloop flow, removed 0 redundant places. [2021-03-25 07:48:24,510 INFO L241 Difference]: Finished difference. Result has 439 places, 705 transitions, 17007 flow [2021-03-25 07:48:24,511 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=16602, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=700, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17007, PETRI_PLACES=439, PETRI_TRANSITIONS=705} [2021-03-25 07:48:24,511 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 408 predicate places. [2021-03-25 07:48:24,511 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:24,511 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 439 places, 705 transitions, 17007 flow [2021-03-25 07:48:24,511 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 439 places, 705 transitions, 17007 flow [2021-03-25 07:48:24,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 439 places, 705 transitions, 17007 flow [2021-03-25 07:48:24,726 INFO L129 PetriNetUnfolder]: 523/1236 cut-off events. [2021-03-25 07:48:24,726 INFO L130 PetriNetUnfolder]: For 58175/58569 co-relation queries the response was YES. [2021-03-25 07:48:24,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14777 conditions, 1236 events. 523/1236 cut-off events. For 58175/58569 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 9418 event pairs, 10 based on Foata normal form. 41/1274 useless extension candidates. Maximal degree in co-relation 14546. Up to 332 conditions per place. [2021-03-25 07:48:24,756 INFO L142 LiptonReduction]: Number of co-enabled transitions 1088 [2021-03-25 07:48:24,812 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:24,812 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:24,812 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 301 [2021-03-25 07:48:24,812 INFO L480 AbstractCegarLoop]: Abstraction has has 439 places, 705 transitions, 17007 flow [2021-03-25 07:48:24,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:24,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:24,812 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:24,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-25 07:48:24,813 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:24,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:24,813 INFO L82 PathProgramCache]: Analyzing trace with hash -2142183668, now seen corresponding path program 10 times [2021-03-25 07:48:24,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:24,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483324323] [2021-03-25 07:48:24,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:24,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:24,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:24,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:24,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:24,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:24,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:24,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:24,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:24,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:24,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:24,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:24,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:24,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:24,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:24,871 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:24,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:24,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:24,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483324323] [2021-03-25 07:48:24,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:24,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:24,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272221821] [2021-03-25 07:48:24,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:24,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:24,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:24,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:24,875 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:24,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 705 transitions, 17007 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:24,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:24,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:24,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:25,489 INFO L129 PetriNetUnfolder]: 701/1522 cut-off events. [2021-03-25 07:48:25,489 INFO L130 PetriNetUnfolder]: For 83638/83657 co-relation queries the response was YES. [2021-03-25 07:48:25,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19413 conditions, 1522 events. 701/1522 cut-off events. For 83638/83657 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 10976 event pairs, 118 based on Foata normal form. 19/1541 useless extension candidates. Maximal degree in co-relation 18835. Up to 1272 conditions per place. [2021-03-25 07:48:25,515 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 641 selfloop transitions, 68 changer transitions 3/717 dead transitions. [2021-03-25 07:48:25,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 717 transitions, 18661 flow [2021-03-25 07:48:25,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:25,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:25,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:48:25,518 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.559322033898305 [2021-03-25 07:48:25,518 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:48:25,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:48:25,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:25,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:48:25,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:25,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:25,520 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:25,520 INFO L185 Difference]: Start difference. First operand has 439 places, 705 transitions, 17007 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:48:25,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 717 transitions, 18661 flow [2021-03-25 07:48:25,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 717 transitions, 18455 flow, removed 63 selfloop flow, removed 6 redundant places. [2021-03-25 07:48:25,942 INFO L241 Difference]: Finished difference. Result has 445 places, 710 transitions, 17148 flow [2021-03-25 07:48:25,942 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=16807, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=705, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=17148, PETRI_PLACES=445, PETRI_TRANSITIONS=710} [2021-03-25 07:48:25,942 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 414 predicate places. [2021-03-25 07:48:25,942 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:25,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 445 places, 710 transitions, 17148 flow [2021-03-25 07:48:25,943 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 445 places, 710 transitions, 17148 flow [2021-03-25 07:48:25,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 445 places, 710 transitions, 17148 flow [2021-03-25 07:48:26,209 INFO L129 PetriNetUnfolder]: 525/1256 cut-off events. [2021-03-25 07:48:26,209 INFO L130 PetriNetUnfolder]: For 55701/55913 co-relation queries the response was YES. [2021-03-25 07:48:26,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14924 conditions, 1256 events. 525/1256 cut-off events. For 55701/55913 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 9643 event pairs, 11 based on Foata normal form. 38/1291 useless extension candidates. Maximal degree in co-relation 14689. Up to 331 conditions per place. [2021-03-25 07:48:26,237 INFO L142 LiptonReduction]: Number of co-enabled transitions 1090 [2021-03-25 07:48:26,290 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:26,291 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:26,291 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 349 [2021-03-25 07:48:26,291 INFO L480 AbstractCegarLoop]: Abstraction has has 445 places, 710 transitions, 17148 flow [2021-03-25 07:48:26,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:26,291 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:26,291 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:26,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-25 07:48:26,291 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:26,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:26,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1729319732, now seen corresponding path program 11 times [2021-03-25 07:48:26,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:26,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189198712] [2021-03-25 07:48:26,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:26,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:26,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:26,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:26,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:26,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:26,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:26,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:26,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:26,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:26,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:26,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:26,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:26,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:26,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:26,341 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:26,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:26,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:26,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189198712] [2021-03-25 07:48:26,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:26,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:26,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130053117] [2021-03-25 07:48:26,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:26,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:26,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:26,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:26,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:26,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 710 transitions, 17148 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:26,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:26,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:26,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:26,905 INFO L129 PetriNetUnfolder]: 707/1530 cut-off events. [2021-03-25 07:48:26,905 INFO L130 PetriNetUnfolder]: For 68971/68978 co-relation queries the response was YES. [2021-03-25 07:48:26,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19568 conditions, 1530 events. 707/1530 cut-off events. For 68971/68978 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 11026 event pairs, 10 based on Foata normal form. 8/1538 useless extension candidates. Maximal degree in co-relation 19170. Up to 1246 conditions per place. [2021-03-25 07:48:26,931 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 648 selfloop transitions, 72 changer transitions 4/729 dead transitions. [2021-03-25 07:48:26,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 729 transitions, 18842 flow [2021-03-25 07:48:26,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:26,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:26,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:48:26,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5665859564164649 [2021-03-25 07:48:26,933 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:48:26,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:48:26,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:26,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:48:26,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:26,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:26,934 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:26,934 INFO L185 Difference]: Start difference. First operand has 445 places, 710 transitions, 17148 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:48:26,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 729 transitions, 18842 flow [2021-03-25 07:48:27,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 729 transitions, 18681 flow, removed 23 selfloop flow, removed 6 redundant places. [2021-03-25 07:48:27,443 INFO L241 Difference]: Finished difference. Result has 450 places, 720 transitions, 17395 flow [2021-03-25 07:48:27,444 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=16987, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=710, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17395, PETRI_PLACES=450, PETRI_TRANSITIONS=720} [2021-03-25 07:48:27,444 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 419 predicate places. [2021-03-25 07:48:27,444 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:27,444 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 450 places, 720 transitions, 17395 flow [2021-03-25 07:48:27,444 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 450 places, 720 transitions, 17395 flow [2021-03-25 07:48:27,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 450 places, 720 transitions, 17395 flow [2021-03-25 07:48:27,673 INFO L129 PetriNetUnfolder]: 531/1270 cut-off events. [2021-03-25 07:48:27,674 INFO L130 PetriNetUnfolder]: For 55548/55815 co-relation queries the response was YES. [2021-03-25 07:48:27,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15105 conditions, 1270 events. 531/1270 cut-off events. For 55548/55815 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 9826 event pairs, 14 based on Foata normal form. 8/1274 useless extension candidates. Maximal degree in co-relation 14867. Up to 332 conditions per place. [2021-03-25 07:48:27,706 INFO L142 LiptonReduction]: Number of co-enabled transitions 1098 [2021-03-25 07:48:27,782 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:27,782 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:27,782 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 338 [2021-03-25 07:48:27,782 INFO L480 AbstractCegarLoop]: Abstraction has has 450 places, 720 transitions, 17395 flow [2021-03-25 07:48:27,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:27,782 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:27,783 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:27,783 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-25 07:48:27,783 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:27,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:27,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1691906884, now seen corresponding path program 12 times [2021-03-25 07:48:27,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:27,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618392178] [2021-03-25 07:48:27,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:27,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:27,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:27,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:27,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:27,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:27,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:27,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:27,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:27,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:27,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:27,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:27,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:27,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:27,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:27,835 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:27,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:27,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618392178] [2021-03-25 07:48:27,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:27,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:27,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505022769] [2021-03-25 07:48:27,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:27,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:27,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:27,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:27,838 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:27,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 720 transitions, 17395 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:27,839 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:27,839 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:27,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:28,517 INFO L129 PetriNetUnfolder]: 706/1525 cut-off events. [2021-03-25 07:48:28,517 INFO L130 PetriNetUnfolder]: For 69832/69847 co-relation queries the response was YES. [2021-03-25 07:48:28,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19695 conditions, 1525 events. 706/1525 cut-off events. For 69832/69847 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 10997 event pairs, 11 based on Foata normal form. 15/1540 useless extension candidates. Maximal degree in co-relation 19293. Up to 1218 conditions per place. [2021-03-25 07:48:28,546 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 607 selfloop transitions, 111 changer transitions 4/727 dead transitions. [2021-03-25 07:48:28,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 727 transitions, 18907 flow [2021-03-25 07:48:28,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:28,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:48:28,547 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5614406779661016 [2021-03-25 07:48:28,547 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:48:28,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:48:28,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:28,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:48:28,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:28,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:28,548 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:28,549 INFO L185 Difference]: Start difference. First operand has 450 places, 720 transitions, 17395 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:48:28,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 727 transitions, 18907 flow [2021-03-25 07:48:28,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 727 transitions, 18846 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 07:48:28,947 INFO L241 Difference]: Finished difference. Result has 457 places, 718 transitions, 17597 flow [2021-03-25 07:48:28,947 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=17334, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=720, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=17597, PETRI_PLACES=457, PETRI_TRANSITIONS=718} [2021-03-25 07:48:28,947 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 426 predicate places. [2021-03-25 07:48:28,947 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:28,948 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 457 places, 718 transitions, 17597 flow [2021-03-25 07:48:28,948 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 457 places, 718 transitions, 17597 flow [2021-03-25 07:48:28,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 457 places, 718 transitions, 17597 flow [2021-03-25 07:48:29,168 INFO L129 PetriNetUnfolder]: 530/1255 cut-off events. [2021-03-25 07:48:29,168 INFO L130 PetriNetUnfolder]: For 61794/62354 co-relation queries the response was YES. [2021-03-25 07:48:29,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15246 conditions, 1255 events. 530/1255 cut-off events. For 61794/62354 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 9513 event pairs, 13 based on Foata normal form. 40/1290 useless extension candidates. Maximal degree in co-relation 15005. Up to 332 conditions per place. [2021-03-25 07:48:29,197 INFO L142 LiptonReduction]: Number of co-enabled transitions 1096 [2021-03-25 07:48:29,252 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:29,252 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:29,252 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 305 [2021-03-25 07:48:29,252 INFO L480 AbstractCegarLoop]: Abstraction has has 457 places, 718 transitions, 17597 flow [2021-03-25 07:48:29,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:29,253 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:29,253 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:29,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-25 07:48:29,253 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:29,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:29,253 INFO L82 PathProgramCache]: Analyzing trace with hash -881743476, now seen corresponding path program 13 times [2021-03-25 07:48:29,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:29,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298489204] [2021-03-25 07:48:29,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:29,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:29,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:29,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:29,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:29,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:29,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:29,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:29,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:29,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:29,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:29,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:29,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:29,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:29,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:29,305 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:29,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:29,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:29,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298489204] [2021-03-25 07:48:29,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:29,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:29,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026124023] [2021-03-25 07:48:29,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:29,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:29,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:29,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:29,308 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:29,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 718 transitions, 17597 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:29,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:29,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:29,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:29,912 INFO L129 PetriNetUnfolder]: 705/1526 cut-off events. [2021-03-25 07:48:29,912 INFO L130 PetriNetUnfolder]: For 80017/80032 co-relation queries the response was YES. [2021-03-25 07:48:29,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19889 conditions, 1526 events. 705/1526 cut-off events. For 80017/80032 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 11010 event pairs, 119 based on Foata normal form. 15/1541 useless extension candidates. Maximal degree in co-relation 19481. Up to 1251 conditions per place. [2021-03-25 07:48:29,936 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 602 selfloop transitions, 110 changer transitions 7/724 dead transitions. [2021-03-25 07:48:29,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 724 transitions, 19107 flow [2021-03-25 07:48:29,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:29,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:29,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:48:29,937 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.559322033898305 [2021-03-25 07:48:29,938 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:48:29,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:48:29,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:29,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:48:29,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:29,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:29,939 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:29,939 INFO L185 Difference]: Start difference. First operand has 457 places, 718 transitions, 17597 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:48:29,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 724 transitions, 19107 flow [2021-03-25 07:48:30,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 724 transitions, 18817 flow, removed 5 selfloop flow, removed 10 redundant places. [2021-03-25 07:48:30,388 INFO L241 Difference]: Finished difference. Result has 456 places, 713 transitions, 17416 flow [2021-03-25 07:48:30,389 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=17309, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=17416, PETRI_PLACES=456, PETRI_TRANSITIONS=713} [2021-03-25 07:48:30,389 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 425 predicate places. [2021-03-25 07:48:30,389 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:30,389 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 456 places, 713 transitions, 17416 flow [2021-03-25 07:48:30,389 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 456 places, 713 transitions, 17416 flow [2021-03-25 07:48:30,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 456 places, 713 transitions, 17416 flow [2021-03-25 07:48:30,629 INFO L129 PetriNetUnfolder]: 528/1257 cut-off events. [2021-03-25 07:48:30,629 INFO L130 PetriNetUnfolder]: For 55685/55847 co-relation queries the response was YES. [2021-03-25 07:48:30,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15059 conditions, 1257 events. 528/1257 cut-off events. For 55685/55847 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 9672 event pairs, 10 based on Foata normal form. 10/1264 useless extension candidates. Maximal degree in co-relation 14818. Up to 330 conditions per place. [2021-03-25 07:48:30,657 INFO L142 LiptonReduction]: Number of co-enabled transitions 1094 [2021-03-25 07:48:30,710 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:30,710 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:30,710 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 321 [2021-03-25 07:48:30,710 INFO L480 AbstractCegarLoop]: Abstraction has has 456 places, 713 transitions, 17416 flow [2021-03-25 07:48:30,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:30,710 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:30,710 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:30,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-25 07:48:30,711 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:30,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:30,711 INFO L82 PathProgramCache]: Analyzing trace with hash -2097459198, now seen corresponding path program 14 times [2021-03-25 07:48:30,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:30,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204422629] [2021-03-25 07:48:30,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:30,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:30,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:30,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:30,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:30,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:30,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:30,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:30,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:30,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:30,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:30,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:30,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:30,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:30,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:30,750 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:30,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:30,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204422629] [2021-03-25 07:48:30,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:30,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:30,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631251853] [2021-03-25 07:48:30,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:30,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:30,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:30,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:30,753 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:30,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 713 transitions, 17416 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:30,753 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:30,753 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:30,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:31,338 INFO L129 PetriNetUnfolder]: 706/1529 cut-off events. [2021-03-25 07:48:31,338 INFO L130 PetriNetUnfolder]: For 69566/69573 co-relation queries the response was YES. [2021-03-25 07:48:31,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19780 conditions, 1529 events. 706/1529 cut-off events. For 69566/69573 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 11104 event pairs, 7 based on Foata normal form. 8/1537 useless extension candidates. Maximal degree in co-relation 19372. Up to 1285 conditions per place. [2021-03-25 07:48:31,364 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 655 selfloop transitions, 62 changer transitions 1/723 dead transitions. [2021-03-25 07:48:31,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 723 transitions, 19086 flow [2021-03-25 07:48:31,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:48:31,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5617433414043583 [2021-03-25 07:48:31,365 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:48:31,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:48:31,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:31,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:48:31,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:31,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:31,366 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:31,366 INFO L185 Difference]: Start difference. First operand has 456 places, 713 transitions, 17416 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:48:31,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 723 transitions, 19086 flow [2021-03-25 07:48:31,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 723 transitions, 18786 flow, removed 6 selfloop flow, removed 12 redundant places. [2021-03-25 07:48:31,808 INFO L241 Difference]: Finished difference. Result has 452 places, 719 transitions, 17497 flow [2021-03-25 07:48:31,808 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=17116, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=713, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=654, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17497, PETRI_PLACES=452, PETRI_TRANSITIONS=719} [2021-03-25 07:48:31,808 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 421 predicate places. [2021-03-25 07:48:31,808 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:31,808 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 719 transitions, 17497 flow [2021-03-25 07:48:31,809 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 719 transitions, 17497 flow [2021-03-25 07:48:31,814 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 452 places, 719 transitions, 17497 flow [2021-03-25 07:48:32,041 INFO L129 PetriNetUnfolder]: 531/1271 cut-off events. [2021-03-25 07:48:32,041 INFO L130 PetriNetUnfolder]: For 57946/58162 co-relation queries the response was YES. [2021-03-25 07:48:32,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15212 conditions, 1271 events. 531/1271 cut-off events. For 57946/58162 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 9789 event pairs, 10 based on Foata normal form. 38/1306 useless extension candidates. Maximal degree in co-relation 14972. Up to 330 conditions per place. [2021-03-25 07:48:32,077 INFO L142 LiptonReduction]: Number of co-enabled transitions 1114 [2021-03-25 07:48:32,160 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:32,161 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:32,161 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 353 [2021-03-25 07:48:32,161 INFO L480 AbstractCegarLoop]: Abstraction has has 452 places, 719 transitions, 17497 flow [2021-03-25 07:48:32,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:32,161 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:32,161 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:32,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-25 07:48:32,161 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:32,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:32,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1747862793, now seen corresponding path program 12 times [2021-03-25 07:48:32,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:32,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680723026] [2021-03-25 07:48:32,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:32,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:32,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:32,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:32,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:32,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:32,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:32,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:32,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:32,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:32,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:32,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:32,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:32,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:32,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:32,213 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:32,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:32,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680723026] [2021-03-25 07:48:32,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:32,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:32,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168012844] [2021-03-25 07:48:32,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:32,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:32,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:32,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:32,217 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:32,217 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 719 transitions, 17497 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:32,217 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:32,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:32,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:32,818 INFO L129 PetriNetUnfolder]: 562/1324 cut-off events. [2021-03-25 07:48:32,819 INFO L130 PetriNetUnfolder]: For 76912/76999 co-relation queries the response was YES. [2021-03-25 07:48:32,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17719 conditions, 1324 events. 562/1324 cut-off events. For 76912/76999 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 9971 event pairs, 8 based on Foata normal form. 79/1403 useless extension candidates. Maximal degree in co-relation 17084. Up to 1009 conditions per place. [2021-03-25 07:48:32,838 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 667 selfloop transitions, 77 changer transitions 3/752 dead transitions. [2021-03-25 07:48:32,838 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 752 transitions, 19770 flow [2021-03-25 07:48:32,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:32,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:48:32,839 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.559322033898305 [2021-03-25 07:48:32,839 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:48:32,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:48:32,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:32,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:48:32,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:32,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:32,840 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:32,840 INFO L185 Difference]: Start difference. First operand has 452 places, 719 transitions, 17497 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:48:32,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 752 transitions, 19770 flow [2021-03-25 07:48:33,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 752 transitions, 19618 flow, removed 63 selfloop flow, removed 1 redundant places. [2021-03-25 07:48:33,271 INFO L241 Difference]: Finished difference. Result has 464 places, 745 transitions, 18332 flow [2021-03-25 07:48:33,272 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=17345, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=649, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=18332, PETRI_PLACES=464, PETRI_TRANSITIONS=745} [2021-03-25 07:48:33,272 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 433 predicate places. [2021-03-25 07:48:33,272 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:33,272 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 464 places, 745 transitions, 18332 flow [2021-03-25 07:48:33,272 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 464 places, 745 transitions, 18332 flow [2021-03-25 07:48:33,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 464 places, 745 transitions, 18332 flow [2021-03-25 07:48:33,530 INFO L129 PetriNetUnfolder]: 545/1331 cut-off events. [2021-03-25 07:48:33,530 INFO L130 PetriNetUnfolder]: For 62282/62640 co-relation queries the response was YES. [2021-03-25 07:48:33,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16031 conditions, 1331 events. 545/1331 cut-off events. For 62282/62640 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 10482 event pairs, 10 based on Foata normal form. 37/1363 useless extension candidates. Maximal degree in co-relation 15783. Up to 355 conditions per place. [2021-03-25 07:48:33,564 INFO L142 LiptonReduction]: Number of co-enabled transitions 1176 [2021-03-25 07:48:33,627 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:33,627 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:33,628 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 356 [2021-03-25 07:48:33,628 INFO L480 AbstractCegarLoop]: Abstraction has has 464 places, 745 transitions, 18332 flow [2021-03-25 07:48:33,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:33,628 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:33,628 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:33,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-25 07:48:33,628 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:33,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:33,628 INFO L82 PathProgramCache]: Analyzing trace with hash -666179078, now seen corresponding path program 15 times [2021-03-25 07:48:33,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:33,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150785910] [2021-03-25 07:48:33,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:33,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:33,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:33,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:33,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:33,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:33,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:33,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:33,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:33,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:33,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:33,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:33,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:33,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:33,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:33,683 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:33,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:33,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:33,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150785910] [2021-03-25 07:48:33,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:33,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:33,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480659489] [2021-03-25 07:48:33,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:33,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:33,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:33,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:33,687 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:33,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 745 transitions, 18332 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:33,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:33,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:33,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:34,372 INFO L129 PetriNetUnfolder]: 736/1622 cut-off events. [2021-03-25 07:48:34,372 INFO L130 PetriNetUnfolder]: For 79932/79939 co-relation queries the response was YES. [2021-03-25 07:48:34,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21223 conditions, 1622 events. 736/1622 cut-off events. For 79932/79939 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 12042 event pairs, 8 based on Foata normal form. 8/1630 useless extension candidates. Maximal degree in co-relation 20805. Up to 1298 conditions per place. [2021-03-25 07:48:34,402 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 649 selfloop transitions, 99 changer transitions 7/760 dead transitions. [2021-03-25 07:48:34,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 760 transitions, 20286 flow [2021-03-25 07:48:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:34,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:48:34,403 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.559322033898305 [2021-03-25 07:48:34,403 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:48:34,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:48:34,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:34,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:48:34,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:34,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:34,404 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:34,404 INFO L185 Difference]: Start difference. First operand has 464 places, 745 transitions, 18332 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:48:34,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 760 transitions, 20286 flow [2021-03-25 07:48:34,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 760 transitions, 20072 flow, removed 107 selfloop flow, removed 0 redundant places. [2021-03-25 07:48:34,895 INFO L241 Difference]: Finished difference. Result has 473 places, 749 transitions, 18519 flow [2021-03-25 07:48:34,896 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=18118, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=745, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=18519, PETRI_PLACES=473, PETRI_TRANSITIONS=749} [2021-03-25 07:48:34,896 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 442 predicate places. [2021-03-25 07:48:34,896 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:34,896 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 473 places, 749 transitions, 18519 flow [2021-03-25 07:48:34,896 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 473 places, 749 transitions, 18519 flow [2021-03-25 07:48:34,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 473 places, 749 transitions, 18519 flow [2021-03-25 07:48:35,182 INFO L129 PetriNetUnfolder]: 547/1304 cut-off events. [2021-03-25 07:48:35,182 INFO L130 PetriNetUnfolder]: For 67482/68052 co-relation queries the response was YES. [2021-03-25 07:48:35,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16094 conditions, 1304 events. 547/1304 cut-off events. For 67482/68052 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 10083 event pairs, 11 based on Foata normal form. 40/1337 useless extension candidates. Maximal degree in co-relation 15842. Up to 351 conditions per place. [2021-03-25 07:48:35,213 INFO L142 LiptonReduction]: Number of co-enabled transitions 1182 [2021-03-25 07:48:35,270 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:35,270 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:35,271 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 375 [2021-03-25 07:48:35,271 INFO L480 AbstractCegarLoop]: Abstraction has has 473 places, 749 transitions, 18519 flow [2021-03-25 07:48:35,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:35,271 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:35,271 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:35,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-25 07:48:35,271 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:35,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:35,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1099522202, now seen corresponding path program 16 times [2021-03-25 07:48:35,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:35,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427461848] [2021-03-25 07:48:35,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:35,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:35,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:35,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:35,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:35,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:35,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:35,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:35,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:35,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:35,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:35,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:35,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:35,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:35,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:35,336 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:35,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:35,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427461848] [2021-03-25 07:48:35,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:35,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:35,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636282798] [2021-03-25 07:48:35,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:35,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:35,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:35,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:35,341 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:35,341 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 749 transitions, 18519 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:35,341 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:35,341 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:35,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:36,016 INFO L129 PetriNetUnfolder]: 744/1642 cut-off events. [2021-03-25 07:48:36,016 INFO L130 PetriNetUnfolder]: For 99909/99928 co-relation queries the response was YES. [2021-03-25 07:48:36,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21441 conditions, 1642 events. 744/1642 cut-off events. For 99909/99928 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 12253 event pairs, 130 based on Foata normal form. 19/1661 useless extension candidates. Maximal degree in co-relation 20655. Up to 1351 conditions per place. [2021-03-25 07:48:36,044 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 671 selfloop transitions, 101 changer transitions 1/778 dead transitions. [2021-03-25 07:48:36,045 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 778 transitions, 20826 flow [2021-03-25 07:48:36,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:36,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:36,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:48:36,046 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5572033898305084 [2021-03-25 07:48:36,046 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:48:36,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:48:36,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:36,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:48:36,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:36,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:36,047 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:36,047 INFO L185 Difference]: Start difference. First operand has 473 places, 749 transitions, 18519 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:48:36,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 778 transitions, 20826 flow [2021-03-25 07:48:36,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 778 transitions, 20495 flow, removed 116 selfloop flow, removed 7 redundant places. [2021-03-25 07:48:36,529 INFO L241 Difference]: Finished difference. Result has 478 places, 774 transitions, 19304 flow [2021-03-25 07:48:36,530 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=18216, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=655, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=19304, PETRI_PLACES=478, PETRI_TRANSITIONS=774} [2021-03-25 07:48:36,530 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 447 predicate places. [2021-03-25 07:48:36,530 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:36,530 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 478 places, 774 transitions, 19304 flow [2021-03-25 07:48:36,531 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 478 places, 774 transitions, 19304 flow [2021-03-25 07:48:36,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 478 places, 774 transitions, 19304 flow [2021-03-25 07:48:36,805 INFO L129 PetriNetUnfolder]: 557/1355 cut-off events. [2021-03-25 07:48:36,805 INFO L130 PetriNetUnfolder]: For 66570/67007 co-relation queries the response was YES. [2021-03-25 07:48:36,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16548 conditions, 1355 events. 557/1355 cut-off events. For 66570/67007 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 10737 event pairs, 10 based on Foata normal form. 38/1388 useless extension candidates. Maximal degree in co-relation 16294. Up to 354 conditions per place. [2021-03-25 07:48:36,841 INFO L142 LiptonReduction]: Number of co-enabled transitions 1230 [2021-03-25 07:48:36,912 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:36,912 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:36,912 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 382 [2021-03-25 07:48:36,912 INFO L480 AbstractCegarLoop]: Abstraction has has 478 places, 774 transitions, 19304 flow [2021-03-25 07:48:36,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:36,912 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:36,913 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:36,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-25 07:48:36,913 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:36,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:36,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1325678199, now seen corresponding path program 13 times [2021-03-25 07:48:36,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:36,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894535862] [2021-03-25 07:48:36,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:36,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:36,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:36,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:36,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:36,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:36,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:36,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:36,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:36,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:36,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:36,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:36,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:36,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:36,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:36,964 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:36,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:36,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:36,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894535862] [2021-03-25 07:48:36,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:36,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:36,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217000119] [2021-03-25 07:48:36,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:36,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:36,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:36,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:36,967 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:36,968 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 774 transitions, 19304 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:36,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:36,968 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:36,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:37,609 INFO L129 PetriNetUnfolder]: 583/1418 cut-off events. [2021-03-25 07:48:37,610 INFO L130 PetriNetUnfolder]: For 86189/86276 co-relation queries the response was YES. [2021-03-25 07:48:37,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19178 conditions, 1418 events. 583/1418 cut-off events. For 86189/86276 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 11111 event pairs, 7 based on Foata normal form. 79/1497 useless extension candidates. Maximal degree in co-relation 18440. Up to 1027 conditions per place. [2021-03-25 07:48:37,633 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 679 selfloop transitions, 117 changer transitions 7/808 dead transitions. [2021-03-25 07:48:37,633 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 808 transitions, 21942 flow [2021-03-25 07:48:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:37,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:37,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:48:37,634 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5572033898305084 [2021-03-25 07:48:37,634 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:48:37,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:48:37,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:37,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:48:37,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:37,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:37,635 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:37,635 INFO L185 Difference]: Start difference. First operand has 478 places, 774 transitions, 19304 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:48:37,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 808 transitions, 21942 flow [2021-03-25 07:48:38,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 808 transitions, 21677 flow, removed 125 selfloop flow, removed 1 redundant places. [2021-03-25 07:48:38,138 INFO L241 Difference]: Finished difference. Result has 490 places, 798 transitions, 20299 flow [2021-03-25 07:48:38,139 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=19043, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=774, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20299, PETRI_PLACES=490, PETRI_TRANSITIONS=798} [2021-03-25 07:48:38,139 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 459 predicate places. [2021-03-25 07:48:38,139 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:38,139 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 490 places, 798 transitions, 20299 flow [2021-03-25 07:48:38,140 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 490 places, 798 transitions, 20299 flow [2021-03-25 07:48:38,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 490 places, 798 transitions, 20299 flow [2021-03-25 07:48:38,437 INFO L129 PetriNetUnfolder]: 563/1419 cut-off events. [2021-03-25 07:48:38,437 INFO L130 PetriNetUnfolder]: For 70059/70432 co-relation queries the response was YES. [2021-03-25 07:48:38,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17367 conditions, 1419 events. 563/1419 cut-off events. For 70059/70432 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 11555 event pairs, 13 based on Foata normal form. 37/1451 useless extension candidates. Maximal degree in co-relation 17106. Up to 384 conditions per place. [2021-03-25 07:48:38,474 INFO L142 LiptonReduction]: Number of co-enabled transitions 1316 [2021-03-25 07:48:38,548 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:38,549 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:38,549 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 410 [2021-03-25 07:48:38,549 INFO L480 AbstractCegarLoop]: Abstraction has has 490 places, 798 transitions, 20299 flow [2021-03-25 07:48:38,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:38,549 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:38,549 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:38,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-25 07:48:38,549 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:38,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:38,550 INFO L82 PathProgramCache]: Analyzing trace with hash 631739650, now seen corresponding path program 17 times [2021-03-25 07:48:38,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:38,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141246265] [2021-03-25 07:48:38,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:38,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:38,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:38,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:38,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:38,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:38,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:38,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:38,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:38,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:38,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:38,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:38,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:38,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:38,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:38,589 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:38,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:38,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:38,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141246265] [2021-03-25 07:48:38,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:38,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:38,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778520345] [2021-03-25 07:48:38,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:38,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:38,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:38,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:38,594 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:38,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 798 transitions, 20299 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:38,594 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:38,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:38,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:39,331 INFO L129 PetriNetUnfolder]: 763/1740 cut-off events. [2021-03-25 07:48:39,331 INFO L130 PetriNetUnfolder]: For 98662/98669 co-relation queries the response was YES. [2021-03-25 07:48:39,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22942 conditions, 1740 events. 763/1740 cut-off events. For 98662/98669 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 13467 event pairs, 10 based on Foata normal form. 8/1748 useless extension candidates. Maximal degree in co-relation 22125. Up to 1397 conditions per place. [2021-03-25 07:48:39,364 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 746 selfloop transitions, 61 changer transitions 5/817 dead transitions. [2021-03-25 07:48:39,365 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 817 transitions, 22481 flow [2021-03-25 07:48:39,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:39,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:48:39,366 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5665859564164649 [2021-03-25 07:48:39,366 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:48:39,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:48:39,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:39,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:48:39,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:39,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:39,367 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:39,367 INFO L185 Difference]: Start difference. First operand has 490 places, 798 transitions, 20299 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:48:39,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 817 transitions, 22481 flow [2021-03-25 07:48:39,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 817 transitions, 22123 flow, removed 175 selfloop flow, removed 2 redundant places. [2021-03-25 07:48:39,981 INFO L241 Difference]: Finished difference. Result has 498 places, 807 transitions, 20504 flow [2021-03-25 07:48:39,982 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=19941, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=798, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=740, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20504, PETRI_PLACES=498, PETRI_TRANSITIONS=807} [2021-03-25 07:48:39,982 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 467 predicate places. [2021-03-25 07:48:39,982 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:39,982 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 498 places, 807 transitions, 20504 flow [2021-03-25 07:48:39,982 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 498 places, 807 transitions, 20504 flow [2021-03-25 07:48:39,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 498 places, 807 transitions, 20504 flow [2021-03-25 07:48:40,277 INFO L129 PetriNetUnfolder]: 568/1417 cut-off events. [2021-03-25 07:48:40,277 INFO L130 PetriNetUnfolder]: For 74478/74879 co-relation queries the response was YES. [2021-03-25 07:48:40,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17474 conditions, 1417 events. 568/1417 cut-off events. For 74478/74879 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 11470 event pairs, 15 based on Foata normal form. 35/1447 useless extension candidates. Maximal degree in co-relation 17208. Up to 381 conditions per place. [2021-03-25 07:48:40,313 INFO L142 LiptonReduction]: Number of co-enabled transitions 1324 [2021-03-25 07:48:40,385 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:40,385 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:40,385 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 403 [2021-03-25 07:48:40,385 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 807 transitions, 20504 flow [2021-03-25 07:48:40,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:40,385 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:40,386 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:40,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-25 07:48:40,386 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:40,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:40,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1492562184, now seen corresponding path program 18 times [2021-03-25 07:48:40,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:40,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191190483] [2021-03-25 07:48:40,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:40,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:40,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:40,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:40,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:40,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:40,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:40,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:40,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:40,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:40,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:40,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:40,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:40,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:40,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:40,442 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:40,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:40,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191190483] [2021-03-25 07:48:40,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:40,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:40,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850220563] [2021-03-25 07:48:40,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:40,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:40,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:40,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:40,446 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:40,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 807 transitions, 20504 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:40,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:40,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:40,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:41,285 INFO L129 PetriNetUnfolder]: 766/1745 cut-off events. [2021-03-25 07:48:41,285 INFO L130 PetriNetUnfolder]: For 89048/89055 co-relation queries the response was YES. [2021-03-25 07:48:41,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22968 conditions, 1745 events. 766/1745 cut-off events. For 89048/89055 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 13508 event pairs, 10 based on Foata normal form. 8/1753 useless extension candidates. Maximal degree in co-relation 22521. Up to 1377 conditions per place. [2021-03-25 07:48:41,315 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 702 selfloop transitions, 111 changer transitions 3/821 dead transitions. [2021-03-25 07:48:41,315 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 821 transitions, 22544 flow [2021-03-25 07:48:41,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:41,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:41,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:48:41,316 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5614406779661016 [2021-03-25 07:48:41,316 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:48:41,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:48:41,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:41,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:48:41,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:41,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:41,317 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:41,317 INFO L185 Difference]: Start difference. First operand has 498 places, 807 transitions, 20504 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:48:41,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 821 transitions, 22544 flow [2021-03-25 07:48:41,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 821 transitions, 22311 flow, removed 93 selfloop flow, removed 4 redundant places. [2021-03-25 07:48:41,912 INFO L241 Difference]: Finished difference. Result has 504 places, 813 transitions, 20925 flow [2021-03-25 07:48:41,913 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=20273, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=807, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20925, PETRI_PLACES=504, PETRI_TRANSITIONS=813} [2021-03-25 07:48:41,913 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 473 predicate places. [2021-03-25 07:48:41,913 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:41,913 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 504 places, 813 transitions, 20925 flow [2021-03-25 07:48:41,913 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 504 places, 813 transitions, 20925 flow [2021-03-25 07:48:41,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 504 places, 813 transitions, 20925 flow [2021-03-25 07:48:42,262 INFO L129 PetriNetUnfolder]: 571/1435 cut-off events. [2021-03-25 07:48:42,262 INFO L130 PetriNetUnfolder]: For 73536/73885 co-relation queries the response was YES. [2021-03-25 07:48:42,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17781 conditions, 1435 events. 571/1435 cut-off events. For 73536/73885 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 11641 event pairs, 15 based on Foata normal form. 37/1467 useless extension candidates. Maximal degree in co-relation 17511. Up to 382 conditions per place. [2021-03-25 07:48:42,303 INFO L142 LiptonReduction]: Number of co-enabled transitions 1332 [2021-03-25 07:48:42,372 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:42,372 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:42,372 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 459 [2021-03-25 07:48:42,373 INFO L480 AbstractCegarLoop]: Abstraction has has 504 places, 813 transitions, 20925 flow [2021-03-25 07:48:42,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:42,373 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:42,373 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:42,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-25 07:48:42,373 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:42,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:42,373 INFO L82 PathProgramCache]: Analyzing trace with hash 618821504, now seen corresponding path program 19 times [2021-03-25 07:48:42,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:42,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078777669] [2021-03-25 07:48:42,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:42,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:42,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:42,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:42,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:42,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:42,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:42,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:42,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:42,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:42,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:42,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:42,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:42,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:42,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:42,425 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:42,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:42,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:42,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078777669] [2021-03-25 07:48:42,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:42,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:42,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194231157] [2021-03-25 07:48:42,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:42,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:42,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:42,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:42,429 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:42,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 813 transitions, 20925 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:42,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:42,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:42,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:43,209 INFO L129 PetriNetUnfolder]: 771/1756 cut-off events. [2021-03-25 07:48:43,209 INFO L130 PetriNetUnfolder]: For 101951/101958 co-relation queries the response was YES. [2021-03-25 07:48:43,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23234 conditions, 1756 events. 771/1756 cut-off events. For 101951/101958 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 13616 event pairs, 9 based on Foata normal form. 8/1764 useless extension candidates. Maximal degree in co-relation 22317. Up to 1424 conditions per place. [2021-03-25 07:48:43,242 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 754 selfloop transitions, 71 changer transitions 5/835 dead transitions. [2021-03-25 07:48:43,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 835 transitions, 23116 flow [2021-03-25 07:48:43,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:43,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:43,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:48:43,243 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.559322033898305 [2021-03-25 07:48:43,243 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:48:43,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:48:43,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:43,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:48:43,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:43,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:43,245 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:43,245 INFO L185 Difference]: Start difference. First operand has 504 places, 813 transitions, 20925 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:48:43,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 835 transitions, 23116 flow [2021-03-25 07:48:43,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 835 transitions, 22879 flow, removed 72 selfloop flow, removed 4 redundant places. [2021-03-25 07:48:43,872 INFO L241 Difference]: Finished difference. Result has 511 places, 826 transitions, 21227 flow [2021-03-25 07:48:43,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=20702, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=746, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21227, PETRI_PLACES=511, PETRI_TRANSITIONS=826} [2021-03-25 07:48:43,873 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 480 predicate places. [2021-03-25 07:48:43,873 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:43,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 511 places, 826 transitions, 21227 flow [2021-03-25 07:48:43,873 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 511 places, 826 transitions, 21227 flow [2021-03-25 07:48:43,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 511 places, 826 transitions, 21227 flow [2021-03-25 07:48:44,182 INFO L129 PetriNetUnfolder]: 576/1446 cut-off events. [2021-03-25 07:48:44,182 INFO L130 PetriNetUnfolder]: For 76863/77340 co-relation queries the response was YES. [2021-03-25 07:48:44,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17803 conditions, 1446 events. 576/1446 cut-off events. For 76863/77340 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 11777 event pairs, 15 based on Foata normal form. 38/1479 useless extension candidates. Maximal degree in co-relation 17529. Up to 380 conditions per place. [2021-03-25 07:48:44,221 INFO L142 LiptonReduction]: Number of co-enabled transitions 1356 [2021-03-25 07:48:44,301 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:44,302 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:44,302 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 429 [2021-03-25 07:48:44,302 INFO L480 AbstractCegarLoop]: Abstraction has has 511 places, 826 transitions, 21227 flow [2021-03-25 07:48:44,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:44,302 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:44,302 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:44,302 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-25 07:48:44,302 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:44,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:44,303 INFO L82 PathProgramCache]: Analyzing trace with hash 606960848, now seen corresponding path program 1 times [2021-03-25 07:48:44,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:44,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905069231] [2021-03-25 07:48:44,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:44,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:44,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:44,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:44,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:44,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:44,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:44,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:44,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:44,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:44,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:44,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:44,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:44,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:44,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:44,342 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:44,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:44,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905069231] [2021-03-25 07:48:44,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:44,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:44,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401360869] [2021-03-25 07:48:44,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:44,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:44,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:44,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:44,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:44,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 826 transitions, 21227 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:44,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:44,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:44,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:45,010 INFO L129 PetriNetUnfolder]: 593/1442 cut-off events. [2021-03-25 07:48:45,010 INFO L130 PetriNetUnfolder]: For 93382/93469 co-relation queries the response was YES. [2021-03-25 07:48:45,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19971 conditions, 1442 events. 593/1442 cut-off events. For 93382/93469 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 11313 event pairs, 10 based on Foata normal form. 79/1521 useless extension candidates. Maximal degree in co-relation 19036. Up to 1080 conditions per place. [2021-03-25 07:48:45,035 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 759 selfloop transitions, 67 changer transitions 3/834 dead transitions. [2021-03-25 07:48:45,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 834 transitions, 23067 flow [2021-03-25 07:48:45,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:45,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:45,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:48:45,036 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5617433414043583 [2021-03-25 07:48:45,036 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:48:45,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:48:45,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:45,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:48:45,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:45,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:45,037 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:45,037 INFO L185 Difference]: Start difference. First operand has 511 places, 826 transitions, 21227 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:48:45,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 834 transitions, 23067 flow [2021-03-25 07:48:45,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 834 transitions, 22703 flow, removed 129 selfloop flow, removed 8 redundant places. [2021-03-25 07:48:45,645 INFO L241 Difference]: Finished difference. Result has 512 places, 827 transitions, 21119 flow [2021-03-25 07:48:45,645 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=20867, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=826, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=759, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21119, PETRI_PLACES=512, PETRI_TRANSITIONS=827} [2021-03-25 07:48:45,645 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 481 predicate places. [2021-03-25 07:48:45,645 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:45,646 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 512 places, 827 transitions, 21119 flow [2021-03-25 07:48:45,646 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 512 places, 827 transitions, 21119 flow [2021-03-25 07:48:45,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 512 places, 827 transitions, 21119 flow [2021-03-25 07:48:45,958 INFO L129 PetriNetUnfolder]: 576/1439 cut-off events. [2021-03-25 07:48:45,958 INFO L130 PetriNetUnfolder]: For 75200/75556 co-relation queries the response was YES. [2021-03-25 07:48:45,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17741 conditions, 1439 events. 576/1439 cut-off events. For 75200/75556 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 11673 event pairs, 15 based on Foata normal form. 41/1476 useless extension candidates. Maximal degree in co-relation 17468. Up to 379 conditions per place. [2021-03-25 07:48:45,997 INFO L142 LiptonReduction]: Number of co-enabled transitions 1358 [2021-03-25 07:48:46,073 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:46,074 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:46,074 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 429 [2021-03-25 07:48:46,074 INFO L480 AbstractCegarLoop]: Abstraction has has 512 places, 827 transitions, 21119 flow [2021-03-25 07:48:46,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:46,074 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:46,074 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:46,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-25 07:48:46,074 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:46,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:46,075 INFO L82 PathProgramCache]: Analyzing trace with hash -401941704, now seen corresponding path program 2 times [2021-03-25 07:48:46,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:46,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10914651] [2021-03-25 07:48:46,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:46,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:46,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:46,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:46,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:46,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:46,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:46,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:46,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:46,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:46,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:46,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:46,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:46,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:46,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:46,111 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:46,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:46,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:46,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10914651] [2021-03-25 07:48:46,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:46,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:46,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129946239] [2021-03-25 07:48:46,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:46,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:46,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:46,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:46,115 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:46,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 827 transitions, 21119 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:46,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:46,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:46,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:46,800 INFO L129 PetriNetUnfolder]: 595/1461 cut-off events. [2021-03-25 07:48:46,801 INFO L130 PetriNetUnfolder]: For 91810/91897 co-relation queries the response was YES. [2021-03-25 07:48:46,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20034 conditions, 1461 events. 595/1461 cut-off events. For 91810/91897 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 11569 event pairs, 9 based on Foata normal form. 79/1540 useless extension candidates. Maximal degree in co-relation 19166. Up to 1122 conditions per place. [2021-03-25 07:48:46,829 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 771 selfloop transitions, 57 changer transitions 9/842 dead transitions. [2021-03-25 07:48:46,829 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 842 transitions, 23094 flow [2021-03-25 07:48:46,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:46,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:46,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:48:46,830 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5617433414043583 [2021-03-25 07:48:46,830 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:48:46,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:48:46,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:46,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:48:46,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:46,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:46,831 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:46,831 INFO L185 Difference]: Start difference. First operand has 512 places, 827 transitions, 21119 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:48:46,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 842 transitions, 23094 flow [2021-03-25 07:48:47,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 842 transitions, 23018 flow, removed 20 selfloop flow, removed 1 redundant places. [2021-03-25 07:48:47,429 INFO L241 Difference]: Finished difference. Result has 522 places, 829 transitions, 21221 flow [2021-03-25 07:48:47,429 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=21043, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=827, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=770, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21221, PETRI_PLACES=522, PETRI_TRANSITIONS=829} [2021-03-25 07:48:47,429 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 491 predicate places. [2021-03-25 07:48:47,429 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:47,429 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 522 places, 829 transitions, 21221 flow [2021-03-25 07:48:47,430 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 522 places, 829 transitions, 21221 flow [2021-03-25 07:48:47,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 522 places, 829 transitions, 21221 flow [2021-03-25 07:48:47,791 INFO L129 PetriNetUnfolder]: 577/1459 cut-off events. [2021-03-25 07:48:47,792 INFO L130 PetriNetUnfolder]: For 76252/76600 co-relation queries the response was YES. [2021-03-25 07:48:47,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17920 conditions, 1459 events. 577/1459 cut-off events. For 76252/76600 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 12026 event pairs, 12 based on Foata normal form. 35/1489 useless extension candidates. Maximal degree in co-relation 17641. Up to 382 conditions per place. [2021-03-25 07:48:47,826 INFO L142 LiptonReduction]: Number of co-enabled transitions 1366 [2021-03-25 07:48:47,897 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:47,898 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:47,898 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 469 [2021-03-25 07:48:47,898 INFO L480 AbstractCegarLoop]: Abstraction has has 522 places, 829 transitions, 21221 flow [2021-03-25 07:48:47,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:47,898 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:47,898 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:47,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-25 07:48:47,898 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:47,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:47,899 INFO L82 PathProgramCache]: Analyzing trace with hash -2009681254, now seen corresponding path program 3 times [2021-03-25 07:48:47,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:47,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208294117] [2021-03-25 07:48:47,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:47,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:47,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:47,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:47,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:47,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:47,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:47,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:47,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:47,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:47,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:47,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:47,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:47,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:47,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:47,948 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:47,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:47,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:47,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208294117] [2021-03-25 07:48:47,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:47,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:47,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684120141] [2021-03-25 07:48:47,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:47,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:47,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:47,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:47,952 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:47,952 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 829 transitions, 21221 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:47,952 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:47,952 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:47,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:48,617 INFO L129 PetriNetUnfolder]: 594/1448 cut-off events. [2021-03-25 07:48:48,618 INFO L130 PetriNetUnfolder]: For 95161/95248 co-relation queries the response was YES. [2021-03-25 07:48:48,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20120 conditions, 1448 events. 594/1448 cut-off events. For 95161/95248 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 11408 event pairs, 11 based on Foata normal form. 79/1527 useless extension candidates. Maximal degree in co-relation 19247. Up to 1046 conditions per place. [2021-03-25 07:48:48,643 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 724 selfloop transitions, 105 changer transitions 3/837 dead transitions. [2021-03-25 07:48:48,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 837 transitions, 23075 flow [2021-03-25 07:48:48,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:48,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:48,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:48:48,644 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5572033898305084 [2021-03-25 07:48:48,644 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:48:48,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:48:48,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:48,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:48:48,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:48,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:48,645 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:48,646 INFO L185 Difference]: Start difference. First operand has 522 places, 829 transitions, 21221 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:48:48,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 837 transitions, 23075 flow [2021-03-25 07:48:49,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 837 transitions, 22965 flow, removed 5 selfloop flow, removed 8 redundant places. [2021-03-25 07:48:49,208 INFO L241 Difference]: Finished difference. Result has 524 places, 830 transitions, 21476 flow [2021-03-25 07:48:49,208 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=21113, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=829, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=724, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21476, PETRI_PLACES=524, PETRI_TRANSITIONS=830} [2021-03-25 07:48:49,209 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 493 predicate places. [2021-03-25 07:48:49,209 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:49,209 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 524 places, 830 transitions, 21476 flow [2021-03-25 07:48:49,209 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 524 places, 830 transitions, 21476 flow [2021-03-25 07:48:49,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 524 places, 830 transitions, 21476 flow [2021-03-25 07:48:49,510 INFO L129 PetriNetUnfolder]: 577/1454 cut-off events. [2021-03-25 07:48:49,510 INFO L130 PetriNetUnfolder]: For 77158/77653 co-relation queries the response was YES. [2021-03-25 07:48:49,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18142 conditions, 1454 events. 577/1454 cut-off events. For 77158/77653 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 11968 event pairs, 14 based on Foata normal form. 34/1482 useless extension candidates. Maximal degree in co-relation 17863. Up to 382 conditions per place. [2021-03-25 07:48:49,548 INFO L142 LiptonReduction]: Number of co-enabled transitions 1368 [2021-03-25 07:48:49,627 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:49,627 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:49,627 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 418 [2021-03-25 07:48:49,628 INFO L480 AbstractCegarLoop]: Abstraction has has 524 places, 830 transitions, 21476 flow [2021-03-25 07:48:49,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:49,628 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:49,628 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:49,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-25 07:48:49,628 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:49,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:49,628 INFO L82 PathProgramCache]: Analyzing trace with hash 2053374102, now seen corresponding path program 4 times [2021-03-25 07:48:49,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:49,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383280424] [2021-03-25 07:48:49,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:49,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:49,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:49,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:49,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:49,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:49,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:49,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:49,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:49,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:49,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:49,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:49,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:49,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:49,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:49,662 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:49,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:49,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:49,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383280424] [2021-03-25 07:48:49,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:49,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:48:49,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148892413] [2021-03-25 07:48:49,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:48:49,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:49,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:48:49,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:48:49,665 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:49,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 830 transitions, 21476 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:49,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:49,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:49,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:50,371 INFO L129 PetriNetUnfolder]: 593/1459 cut-off events. [2021-03-25 07:48:50,371 INFO L130 PetriNetUnfolder]: For 94544/94631 co-relation queries the response was YES. [2021-03-25 07:48:50,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20492 conditions, 1459 events. 593/1459 cut-off events. For 94544/94631 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 11605 event pairs, 15 based on Foata normal form. 79/1538 useless extension candidates. Maximal degree in co-relation 20022. Up to 1058 conditions per place. [2021-03-25 07:48:50,403 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 752 selfloop transitions, 71 changer transitions 15/843 dead transitions. [2021-03-25 07:48:50,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 843 transitions, 23573 flow [2021-03-25 07:48:50,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:48:50,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:48:50,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2021-03-25 07:48:50,405 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.559322033898305 [2021-03-25 07:48:50,405 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 231 transitions. [2021-03-25 07:48:50,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 231 transitions. [2021-03-25 07:48:50,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:50,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 231 transitions. [2021-03-25 07:48:50,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.0) internal successors, (231), 7 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:50,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:50,406 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:50,406 INFO L185 Difference]: Start difference. First operand has 524 places, 830 transitions, 21476 flow. Second operand 7 states and 231 transitions. [2021-03-25 07:48:50,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 843 transitions, 23573 flow [2021-03-25 07:48:50,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 843 transitions, 23329 flow, removed 26 selfloop flow, removed 6 redundant places. [2021-03-25 07:48:51,003 INFO L241 Difference]: Finished difference. Result has 529 places, 824 transitions, 21210 flow [2021-03-25 07:48:51,003 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=21238, PETRI_DIFFERENCE_MINUEND_PLACES=518, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=830, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=759, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21210, PETRI_PLACES=529, PETRI_TRANSITIONS=824} [2021-03-25 07:48:51,003 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 498 predicate places. [2021-03-25 07:48:51,004 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:51,004 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 529 places, 824 transitions, 21210 flow [2021-03-25 07:48:51,004 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 529 places, 824 transitions, 21210 flow [2021-03-25 07:48:51,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 529 places, 824 transitions, 21210 flow [2021-03-25 07:48:51,314 INFO L129 PetriNetUnfolder]: 573/1457 cut-off events. [2021-03-25 07:48:51,314 INFO L130 PetriNetUnfolder]: For 74152/74532 co-relation queries the response was YES. [2021-03-25 07:48:51,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18039 conditions, 1457 events. 573/1457 cut-off events. For 74152/74532 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 11955 event pairs, 13 based on Foata normal form. 36/1490 useless extension candidates. Maximal degree in co-relation 17756. Up to 377 conditions per place. [2021-03-25 07:48:51,353 INFO L142 LiptonReduction]: Number of co-enabled transitions 1358 [2021-03-25 07:48:51,431 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:51,431 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:51,431 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 427 [2021-03-25 07:48:51,431 INFO L480 AbstractCegarLoop]: Abstraction has has 529 places, 824 transitions, 21210 flow [2021-03-25 07:48:51,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:51,432 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:51,432 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:51,432 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-25 07:48:51,432 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:51,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:51,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1198067448, now seen corresponding path program 5 times [2021-03-25 07:48:51,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:51,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238369080] [2021-03-25 07:48:51,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:51,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:51,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:51,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:51,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:51,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:51,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:51,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:51,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:51,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:51,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:51,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:51,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:51,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:51,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:51,480 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:51,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:51,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:51,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238369080] [2021-03-25 07:48:51,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:51,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:51,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004777398] [2021-03-25 07:48:51,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:51,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:51,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:51,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:51,483 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:51,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 824 transitions, 21210 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:51,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:51,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:51,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:52,178 INFO L129 PetriNetUnfolder]: 590/1448 cut-off events. [2021-03-25 07:48:52,178 INFO L130 PetriNetUnfolder]: For 101169/101256 co-relation queries the response was YES. [2021-03-25 07:48:52,201 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20352 conditions, 1448 events. 590/1448 cut-off events. For 101169/101256 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 11454 event pairs, 15 based on Foata normal form. 79/1527 useless extension candidates. Maximal degree in co-relation 19472. Up to 971 conditions per place. [2021-03-25 07:48:52,207 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 695 selfloop transitions, 123 changer transitions 10/833 dead transitions. [2021-03-25 07:48:52,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 833 transitions, 23224 flow [2021-03-25 07:48:52,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:52,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:52,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:48:52,208 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5550847457627118 [2021-03-25 07:48:52,208 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:48:52,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:48:52,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:52,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:48:52,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:52,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:52,209 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:52,209 INFO L185 Difference]: Start difference. First operand has 529 places, 824 transitions, 21210 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:48:52,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 833 transitions, 23224 flow [2021-03-25 07:48:52,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 833 transitions, 22734 flow, removed 107 selfloop flow, removed 13 redundant places. [2021-03-25 07:48:52,767 INFO L241 Difference]: Finished difference. Result has 528 places, 819 transitions, 21040 flow [2021-03-25 07:48:52,768 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=20732, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=701, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21040, PETRI_PLACES=528, PETRI_TRANSITIONS=819} [2021-03-25 07:48:52,768 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 497 predicate places. [2021-03-25 07:48:52,768 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:52,768 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 528 places, 819 transitions, 21040 flow [2021-03-25 07:48:52,768 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 528 places, 819 transitions, 21040 flow [2021-03-25 07:48:52,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 528 places, 819 transitions, 21040 flow [2021-03-25 07:48:53,071 INFO L129 PetriNetUnfolder]: 571/1431 cut-off events. [2021-03-25 07:48:53,071 INFO L130 PetriNetUnfolder]: For 77418/77980 co-relation queries the response was YES. [2021-03-25 07:48:53,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18036 conditions, 1431 events. 571/1431 cut-off events. For 77418/77980 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 11625 event pairs, 10 based on Foata normal form. 33/1459 useless extension candidates. Maximal degree in co-relation 17754. Up to 377 conditions per place. [2021-03-25 07:48:53,112 INFO L142 LiptonReduction]: Number of co-enabled transitions 1352 [2021-03-25 07:48:53,189 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:53,190 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:53,190 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 422 [2021-03-25 07:48:53,190 INFO L480 AbstractCegarLoop]: Abstraction has has 528 places, 819 transitions, 21040 flow [2021-03-25 07:48:53,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:53,190 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:53,190 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:53,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-25 07:48:53,190 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:53,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:53,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1146644202, now seen corresponding path program 6 times [2021-03-25 07:48:53,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:53,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703229987] [2021-03-25 07:48:53,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:53,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:53,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:53,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:53,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:53,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:53,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:53,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:53,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:53,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:53,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:53,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:53,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:53,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:53,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:53,247 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:53,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:53,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:53,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703229987] [2021-03-25 07:48:53,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:53,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:53,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895890608] [2021-03-25 07:48:53,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:53,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:53,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:53,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:53,250 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:53,251 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 819 transitions, 21040 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:53,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:53,251 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:53,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:53,961 INFO L129 PetriNetUnfolder]: 587/1439 cut-off events. [2021-03-25 07:48:53,961 INFO L130 PetriNetUnfolder]: For 91414/91501 co-relation queries the response was YES. [2021-03-25 07:48:53,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20260 conditions, 1439 events. 587/1439 cut-off events. For 91414/91501 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 11335 event pairs, 8 based on Foata normal form. 79/1518 useless extension candidates. Maximal degree in co-relation 19790. Up to 1066 conditions per place. [2021-03-25 07:48:53,987 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 722 selfloop transitions, 95 changer transitions 6/828 dead transitions. [2021-03-25 07:48:53,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 828 transitions, 22875 flow [2021-03-25 07:48:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:53,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:48:53,989 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5572033898305084 [2021-03-25 07:48:53,989 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:48:53,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:48:53,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:53,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:48:53,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:53,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:53,990 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:53,990 INFO L185 Difference]: Start difference. First operand has 528 places, 819 transitions, 21040 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:48:53,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 828 transitions, 22875 flow [2021-03-25 07:48:54,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 828 transitions, 22293 flow, removed 36 selfloop flow, removed 19 redundant places. [2021-03-25 07:48:54,827 INFO L241 Difference]: Finished difference. Result has 520 places, 818 transitions, 20747 flow [2021-03-25 07:48:54,827 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=20460, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=724, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20747, PETRI_PLACES=520, PETRI_TRANSITIONS=818} [2021-03-25 07:48:54,827 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 489 predicate places. [2021-03-25 07:48:54,827 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:54,828 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 520 places, 818 transitions, 20747 flow [2021-03-25 07:48:54,828 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 520 places, 818 transitions, 20747 flow [2021-03-25 07:48:54,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 520 places, 818 transitions, 20747 flow [2021-03-25 07:48:55,127 INFO L129 PetriNetUnfolder]: 570/1440 cut-off events. [2021-03-25 07:48:55,128 INFO L130 PetriNetUnfolder]: For 73813/74168 co-relation queries the response was YES. [2021-03-25 07:48:55,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17594 conditions, 1440 events. 570/1440 cut-off events. For 73813/74168 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 11829 event pairs, 8 based on Foata normal form. 39/1476 useless extension candidates. Maximal degree in co-relation 17318. Up to 377 conditions per place. [2021-03-25 07:48:55,166 INFO L142 LiptonReduction]: Number of co-enabled transitions 1352 [2021-03-25 07:48:55,243 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:55,243 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:55,243 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 416 [2021-03-25 07:48:55,243 INFO L480 AbstractCegarLoop]: Abstraction has has 520 places, 818 transitions, 20747 flow [2021-03-25 07:48:55,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:55,244 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:55,244 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:55,244 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-25 07:48:55,244 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:55,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:55,244 INFO L82 PathProgramCache]: Analyzing trace with hash -291337548, now seen corresponding path program 7 times [2021-03-25 07:48:55,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:55,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833060094] [2021-03-25 07:48:55,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:55,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:55,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:55,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:55,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:55,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:55,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:55,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:55,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:55,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:55,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:55,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:55,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:55,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:55,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:55,293 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:55,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:55,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:55,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833060094] [2021-03-25 07:48:55,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:55,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:55,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21591981] [2021-03-25 07:48:55,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:55,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:55,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:55,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:55,297 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:55,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 818 transitions, 20747 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:55,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:55,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:55,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:56,052 INFO L129 PetriNetUnfolder]: 587/1440 cut-off events. [2021-03-25 07:48:56,052 INFO L130 PetriNetUnfolder]: For 89701/89788 co-relation queries the response was YES. [2021-03-25 07:48:56,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19859 conditions, 1440 events. 587/1440 cut-off events. For 89701/89788 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 11374 event pairs, 9 based on Foata normal form. 79/1519 useless extension candidates. Maximal degree in co-relation 19010. Up to 1091 conditions per place. [2021-03-25 07:48:56,078 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 748 selfloop transitions, 66 changer transitions 11/830 dead transitions. [2021-03-25 07:48:56,078 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 830 transitions, 22758 flow [2021-03-25 07:48:56,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:56,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:56,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:48:56,079 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5572033898305084 [2021-03-25 07:48:56,079 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:48:56,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:48:56,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:56,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:48:56,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:56,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:56,080 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:56,080 INFO L185 Difference]: Start difference. First operand has 520 places, 818 transitions, 20747 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:48:56,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 830 transitions, 22758 flow [2021-03-25 07:48:56,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 830 transitions, 22493 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-03-25 07:48:56,664 INFO L241 Difference]: Finished difference. Result has 522 places, 815 transitions, 20592 flow [2021-03-25 07:48:56,665 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=20484, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=752, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20592, PETRI_PLACES=522, PETRI_TRANSITIONS=815} [2021-03-25 07:48:56,665 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 491 predicate places. [2021-03-25 07:48:56,665 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:56,665 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 522 places, 815 transitions, 20592 flow [2021-03-25 07:48:56,665 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 522 places, 815 transitions, 20592 flow [2021-03-25 07:48:56,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 522 places, 815 transitions, 20592 flow [2021-03-25 07:48:57,038 INFO L129 PetriNetUnfolder]: 569/1403 cut-off events. [2021-03-25 07:48:57,038 INFO L130 PetriNetUnfolder]: For 75549/76046 co-relation queries the response was YES. [2021-03-25 07:48:57,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17511 conditions, 1403 events. 569/1403 cut-off events. For 75549/76046 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 11313 event pairs, 7 based on Foata normal form. 34/1431 useless extension candidates. Maximal degree in co-relation 17233. Up to 376 conditions per place. [2021-03-25 07:48:57,077 INFO L142 LiptonReduction]: Number of co-enabled transitions 1352 [2021-03-25 07:48:57,147 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:57,147 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:57,147 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 482 [2021-03-25 07:48:57,147 INFO L480 AbstractCegarLoop]: Abstraction has has 522 places, 815 transitions, 20592 flow [2021-03-25 07:48:57,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:57,147 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:57,147 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:57,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-25 07:48:57,148 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:57,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:57,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1092005627, now seen corresponding path program 14 times [2021-03-25 07:48:57,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:57,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614867994] [2021-03-25 07:48:57,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:57,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:57,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:57,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:57,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:57,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:57,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:57,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:57,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:57,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:57,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:57,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:57,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:57,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:57,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:57,197 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:57,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:57,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:57,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614867994] [2021-03-25 07:48:57,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:57,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:57,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816174016] [2021-03-25 07:48:57,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:57,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:57,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:57,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:57,201 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:57,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 815 transitions, 20592 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:57,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:57,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:57,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:57,863 INFO L129 PetriNetUnfolder]: 590/1457 cut-off events. [2021-03-25 07:48:57,863 INFO L130 PetriNetUnfolder]: For 90591/90675 co-relation queries the response was YES. [2021-03-25 07:48:57,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19948 conditions, 1457 events. 590/1457 cut-off events. For 90591/90675 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 11574 event pairs, 16 based on Foata normal form. 76/1533 useless extension candidates. Maximal degree in co-relation 19096. Up to 1008 conditions per place. [2021-03-25 07:48:57,901 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 707 selfloop transitions, 116 changer transitions 2/830 dead transitions. [2021-03-25 07:48:57,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 830 transitions, 22610 flow [2021-03-25 07:48:57,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:57,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:57,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 261 transitions. [2021-03-25 07:48:57,903 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5529661016949152 [2021-03-25 07:48:57,903 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 261 transitions. [2021-03-25 07:48:57,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 261 transitions. [2021-03-25 07:48:57,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:57,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 261 transitions. [2021-03-25 07:48:57,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:57,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:57,904 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:57,904 INFO L185 Difference]: Start difference. First operand has 522 places, 815 transitions, 20592 flow. Second operand 8 states and 261 transitions. [2021-03-25 07:48:57,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 830 transitions, 22610 flow [2021-03-25 07:48:58,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 830 transitions, 22163 flow, removed 49 selfloop flow, removed 19 redundant places. [2021-03-25 07:48:58,561 INFO L241 Difference]: Finished difference. Result has 515 places, 824 transitions, 20845 flow [2021-03-25 07:48:58,562 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=20155, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=815, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=701, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20845, PETRI_PLACES=515, PETRI_TRANSITIONS=824} [2021-03-25 07:48:58,562 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 484 predicate places. [2021-03-25 07:48:58,562 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:48:58,562 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 515 places, 824 transitions, 20845 flow [2021-03-25 07:48:58,562 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 515 places, 824 transitions, 20845 flow [2021-03-25 07:48:58,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 515 places, 824 transitions, 20845 flow [2021-03-25 07:48:58,866 INFO L129 PetriNetUnfolder]: 572/1459 cut-off events. [2021-03-25 07:48:58,866 INFO L130 PetriNetUnfolder]: For 73721/74312 co-relation queries the response was YES. [2021-03-25 07:48:58,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17723 conditions, 1459 events. 572/1459 cut-off events. For 73721/74312 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 12051 event pairs, 9 based on Foata normal form. 39/1494 useless extension candidates. Maximal degree in co-relation 17450. Up to 387 conditions per place. [2021-03-25 07:48:58,904 INFO L142 LiptonReduction]: Number of co-enabled transitions 1386 [2021-03-25 07:48:58,981 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:48:58,981 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:48:58,981 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 419 [2021-03-25 07:48:58,982 INFO L480 AbstractCegarLoop]: Abstraction has has 515 places, 824 transitions, 20845 flow [2021-03-25 07:48:58,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:58,982 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:48:58,982 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:48:58,982 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-25 07:48:58,982 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:48:58,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:48:58,983 INFO L82 PathProgramCache]: Analyzing trace with hash 945208499, now seen corresponding path program 15 times [2021-03-25 07:48:58,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:48:58,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122155099] [2021-03-25 07:48:58,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:48:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:48:58,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:58,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:58,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:58,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:58,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:58,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:58,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:58,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:59,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:59,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:48:59,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:59,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:48:59,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:48:59,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:48:59,028 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:48:59,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:48:59,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:48:59,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122155099] [2021-03-25 07:48:59,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:48:59,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:48:59,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273093916] [2021-03-25 07:48:59,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:48:59,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:48:59,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:48:59,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:48:59,031 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:48:59,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 824 transitions, 20845 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:59,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:48:59,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:48:59,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:48:59,745 INFO L129 PetriNetUnfolder]: 600/1539 cut-off events. [2021-03-25 07:48:59,745 INFO L130 PetriNetUnfolder]: For 77072/77104 co-relation queries the response was YES. [2021-03-25 07:48:59,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20599 conditions, 1539 events. 600/1539 cut-off events. For 77072/77104 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 12727 event pairs, 9 based on Foata normal form. 30/1569 useless extension candidates. Maximal degree in co-relation 20140. Up to 1136 conditions per place. [2021-03-25 07:48:59,770 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 772 selfloop transitions, 95 changer transitions 6/878 dead transitions. [2021-03-25 07:48:59,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 878 transitions, 24794 flow [2021-03-25 07:48:59,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:48:59,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:48:59,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:48:59,771 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5572033898305084 [2021-03-25 07:48:59,771 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:48:59,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:48:59,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:48:59,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:48:59,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:59,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:59,772 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:48:59,772 INFO L185 Difference]: Start difference. First operand has 515 places, 824 transitions, 20845 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:48:59,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 878 transitions, 24794 flow [2021-03-25 07:49:00,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 878 transitions, 24713 flow, removed 24 selfloop flow, removed 2 redundant places. [2021-03-25 07:49:00,349 INFO L241 Difference]: Finished difference. Result has 523 places, 868 transitions, 23159 flow [2021-03-25 07:49:00,349 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=20764, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=731, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=23159, PETRI_PLACES=523, PETRI_TRANSITIONS=868} [2021-03-25 07:49:00,349 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 492 predicate places. [2021-03-25 07:49:00,350 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:00,350 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 523 places, 868 transitions, 23159 flow [2021-03-25 07:49:00,350 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 523 places, 868 transitions, 23159 flow [2021-03-25 07:49:00,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 523 places, 868 transitions, 23159 flow [2021-03-25 07:49:00,671 INFO L129 PetriNetUnfolder]: 579/1542 cut-off events. [2021-03-25 07:49:00,672 INFO L130 PetriNetUnfolder]: For 83353/83985 co-relation queries the response was YES. [2021-03-25 07:49:00,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18615 conditions, 1542 events. 579/1542 cut-off events. For 83353/83985 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 13187 event pairs, 7 based on Foata normal form. 59/1599 useless extension candidates. Maximal degree in co-relation 18337. Up to 409 conditions per place. [2021-03-25 07:49:00,711 INFO L142 LiptonReduction]: Number of co-enabled transitions 1516 [2021-03-25 07:49:00,798 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:00,798 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:00,798 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 448 [2021-03-25 07:49:00,798 INFO L480 AbstractCegarLoop]: Abstraction has has 523 places, 868 transitions, 23159 flow [2021-03-25 07:49:00,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:00,798 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:00,798 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:00,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-25 07:49:00,799 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:00,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:00,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1800515153, now seen corresponding path program 16 times [2021-03-25 07:49:00,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:00,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270930876] [2021-03-25 07:49:00,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:00,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:00,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:00,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:00,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:00,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:00,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:00,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:00,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:00,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:00,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:49:00,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:00,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:00,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:00,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:00,847 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:00,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:00,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270930876] [2021-03-25 07:49:00,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:00,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:49:00,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340667622] [2021-03-25 07:49:00,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:49:00,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:00,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:49:00,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:49:00,850 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:49:00,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 868 transitions, 23159 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:00,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:00,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:49:00,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:01,592 INFO L129 PetriNetUnfolder]: 601/1572 cut-off events. [2021-03-25 07:49:01,592 INFO L130 PetriNetUnfolder]: For 80101/80191 co-relation queries the response was YES. [2021-03-25 07:49:01,614 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21106 conditions, 1572 events. 601/1572 cut-off events. For 80101/80191 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 13146 event pairs, 9 based on Foata normal form. 79/1651 useless extension candidates. Maximal degree in co-relation 20641. Up to 1105 conditions per place. [2021-03-25 07:49:01,620 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 760 selfloop transitions, 135 changer transitions 8/908 dead transitions. [2021-03-25 07:49:01,620 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 908 transitions, 25697 flow [2021-03-25 07:49:01,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:49:01,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:49:01,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:49:01,621 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5572033898305084 [2021-03-25 07:49:01,621 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:49:01,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:49:01,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:01,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:49:01,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:01,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:01,622 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:01,622 INFO L185 Difference]: Start difference. First operand has 523 places, 868 transitions, 23159 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:49:01,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 908 transitions, 25697 flow [2021-03-25 07:49:02,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 908 transitions, 25549 flow, removed 61 selfloop flow, removed 4 redundant places. [2021-03-25 07:49:02,310 INFO L241 Difference]: Finished difference. Result has 530 places, 896 transitions, 24041 flow [2021-03-25 07:49:02,310 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=23011, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=868, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=735, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=24041, PETRI_PLACES=530, PETRI_TRANSITIONS=896} [2021-03-25 07:49:02,310 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 499 predicate places. [2021-03-25 07:49:02,311 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:02,311 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 530 places, 896 transitions, 24041 flow [2021-03-25 07:49:02,311 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 530 places, 896 transitions, 24041 flow [2021-03-25 07:49:02,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 530 places, 896 transitions, 24041 flow [2021-03-25 07:49:02,673 INFO L129 PetriNetUnfolder]: 581/1586 cut-off events. [2021-03-25 07:49:02,673 INFO L130 PetriNetUnfolder]: For 86778/87681 co-relation queries the response was YES. [2021-03-25 07:49:02,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19153 conditions, 1586 events. 581/1586 cut-off events. For 86778/87681 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 13814 event pairs, 6 based on Foata normal form. 64/1647 useless extension candidates. Maximal degree in co-relation 18873. Up to 421 conditions per place. [2021-03-25 07:49:02,713 INFO L142 LiptonReduction]: Number of co-enabled transitions 1602 [2021-03-25 07:49:02,801 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:02,801 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:02,801 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 490 [2021-03-25 07:49:02,801 INFO L480 AbstractCegarLoop]: Abstraction has has 530 places, 896 transitions, 24041 flow [2021-03-25 07:49:02,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:02,801 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:02,801 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:02,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-25 07:49:02,802 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:02,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:02,802 INFO L82 PathProgramCache]: Analyzing trace with hash 407352921, now seen corresponding path program 17 times [2021-03-25 07:49:02,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:02,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718383546] [2021-03-25 07:49:02,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:02,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:02,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:02,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:02,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:02,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:02,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:02,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:02,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:02,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:02,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:49:02,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:02,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:02,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:02,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:02,856 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:02,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:02,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:02,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718383546] [2021-03-25 07:49:02,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:02,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:49:02,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056240280] [2021-03-25 07:49:02,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:49:02,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:02,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:49:02,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:49:02,860 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2021-03-25 07:49:02,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 896 transitions, 24041 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:02,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:02,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2021-03-25 07:49:02,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:03,704 INFO L129 PetriNetUnfolder]: 602/1618 cut-off events. [2021-03-25 07:49:03,704 INFO L130 PetriNetUnfolder]: For 86437/86527 co-relation queries the response was YES. [2021-03-25 07:49:03,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21837 conditions, 1618 events. 602/1618 cut-off events. For 86437/86527 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 13844 event pairs, 8 based on Foata normal form. 79/1697 useless extension candidates. Maximal degree in co-relation 21368. Up to 1131 conditions per place. [2021-03-25 07:49:03,733 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 772 selfloop transitions, 139 changer transitions 6/922 dead transitions. [2021-03-25 07:49:03,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 922 transitions, 26600 flow [2021-03-25 07:49:03,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:49:03,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:49:03,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:49:03,734 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5550847457627118 [2021-03-25 07:49:03,734 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:49:03,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:49:03,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:03,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:49:03,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:03,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:03,735 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:03,736 INFO L185 Difference]: Start difference. First operand has 530 places, 896 transitions, 24041 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:49:03,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 922 transitions, 26600 flow [2021-03-25 07:49:04,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 922 transitions, 26406 flow, removed 60 selfloop flow, removed 6 redundant places. [2021-03-25 07:49:04,377 INFO L241 Difference]: Finished difference. Result has 535 places, 913 transitions, 24896 flow [2021-03-25 07:49:04,377 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=23901, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=896, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=759, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=24896, PETRI_PLACES=535, PETRI_TRANSITIONS=913} [2021-03-25 07:49:04,377 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 504 predicate places. [2021-03-25 07:49:04,377 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:04,378 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 535 places, 913 transitions, 24896 flow [2021-03-25 07:49:04,378 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 535 places, 913 transitions, 24896 flow [2021-03-25 07:49:04,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 535 places, 913 transitions, 24896 flow [2021-03-25 07:49:04,646 INFO L129 PetriNetUnfolder]: 538/1231 cut-off events. [2021-03-25 07:49:04,646 INFO L130 PetriNetUnfolder]: For 67167/67991 co-relation queries the response was YES. [2021-03-25 07:49:04,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15473 conditions, 1231 events. 538/1231 cut-off events. For 67167/67991 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 9323 event pairs, 3 based on Foata normal form. 48/1278 useless extension candidates. Maximal degree in co-relation 15190. Up to 366 conditions per place. [2021-03-25 07:49:04,680 INFO L142 LiptonReduction]: Number of co-enabled transitions 1684 [2021-03-25 07:49:04,923 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 07:49:04,923 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:49:04,923 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 546 [2021-03-25 07:49:04,923 INFO L480 AbstractCegarLoop]: Abstraction has has 535 places, 913 transitions, 24900 flow [2021-03-25 07:49:04,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:04,924 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:04,924 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:04,924 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-25 07:49:04,924 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:04,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:04,924 INFO L82 PathProgramCache]: Analyzing trace with hash 613307092, now seen corresponding path program 4 times [2021-03-25 07:49:04,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:04,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340645051] [2021-03-25 07:49:04,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:04,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:04,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:04,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:04,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:04,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:04,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:04,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:04,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:04,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:04,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:04,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:04,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:04,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:04,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:04,953 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:04,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:04,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:04,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340645051] [2021-03-25 07:49:04,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:04,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:49:04,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674325245] [2021-03-25 07:49:04,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:49:04,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:04,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:49:04,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:49:04,956 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:04,956 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 913 transitions, 24900 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:04,956 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:04,956 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:04,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:05,724 INFO L129 PetriNetUnfolder]: 779/1634 cut-off events. [2021-03-25 07:49:05,724 INFO L130 PetriNetUnfolder]: For 91043/91266 co-relation queries the response was YES. [2021-03-25 07:49:05,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22517 conditions, 1634 events. 779/1634 cut-off events. For 91043/91266 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 11682 event pairs, 5 based on Foata normal form. 10/1640 useless extension candidates. Maximal degree in co-relation 22231. Up to 1417 conditions per place. [2021-03-25 07:49:05,755 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 890 selfloop transitions, 24 changer transitions 2/921 dead transitions. [2021-03-25 07:49:05,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 921 transitions, 26962 flow [2021-03-25 07:49:05,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:49:05,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:49:05,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 199 transitions. [2021-03-25 07:49:05,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5527777777777778 [2021-03-25 07:49:05,756 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 199 transitions. [2021-03-25 07:49:05,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 199 transitions. [2021-03-25 07:49:05,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:05,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 199 transitions. [2021-03-25 07:49:05,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:05,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 60.0) internal successors, (420), 7 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:05,757 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 60.0) internal successors, (420), 7 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:05,757 INFO L185 Difference]: Start difference. First operand has 535 places, 913 transitions, 24900 flow. Second operand 6 states and 199 transitions. [2021-03-25 07:49:05,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 921 transitions, 26962 flow [2021-03-25 07:49:06,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 921 transitions, 26221 flow, removed 214 selfloop flow, removed 9 redundant places. [2021-03-25 07:49:06,537 INFO L241 Difference]: Finished difference. Result has 534 places, 914 transitions, 24316 flow [2021-03-25 07:49:06,538 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=24165, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=913, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=889, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=24316, PETRI_PLACES=534, PETRI_TRANSITIONS=914} [2021-03-25 07:49:06,538 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 503 predicate places. [2021-03-25 07:49:06,538 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:06,538 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 534 places, 914 transitions, 24316 flow [2021-03-25 07:49:06,538 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 534 places, 914 transitions, 24316 flow [2021-03-25 07:49:06,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 534 places, 914 transitions, 24316 flow [2021-03-25 07:49:06,797 INFO L129 PetriNetUnfolder]: 538/1212 cut-off events. [2021-03-25 07:49:06,797 INFO L130 PetriNetUnfolder]: For 73182/73714 co-relation queries the response was YES. [2021-03-25 07:49:06,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15090 conditions, 1212 events. 538/1212 cut-off events. For 73182/73714 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 9054 event pairs, 2 based on Foata normal form. 51/1261 useless extension candidates. Maximal degree in co-relation 14809. Up to 367 conditions per place. [2021-03-25 07:49:06,828 INFO L142 LiptonReduction]: Number of co-enabled transitions 1684 [2021-03-25 07:49:06,922 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:06,922 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:06,922 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 384 [2021-03-25 07:49:06,923 INFO L480 AbstractCegarLoop]: Abstraction has has 534 places, 914 transitions, 24316 flow [2021-03-25 07:49:06,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:06,923 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:06,923 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:06,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-25 07:49:06,923 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:06,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:06,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1133494900, now seen corresponding path program 1 times [2021-03-25 07:49:06,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:06,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317645001] [2021-03-25 07:49:06,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:06,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:06,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:06,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:06,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:06,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:06,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:06,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:06,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:06,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:06,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:06,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:06,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:06,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:06,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:06,954 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:06,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:06,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317645001] [2021-03-25 07:49:06,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:06,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:49:06,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232342805] [2021-03-25 07:49:06,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:49:06,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:06,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:49:06,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:49:06,956 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:06,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 914 transitions, 24316 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:06,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:06,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:06,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:07,699 INFO L129 PetriNetUnfolder]: 788/1659 cut-off events. [2021-03-25 07:49:07,699 INFO L130 PetriNetUnfolder]: For 97107/97107 co-relation queries the response was YES. [2021-03-25 07:49:07,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22317 conditions, 1659 events. 788/1659 cut-off events. For 97107/97107 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 11961 event pairs, 12 based on Foata normal form. 1/1660 useless extension candidates. Maximal degree in co-relation 21464. Up to 1400 conditions per place. [2021-03-25 07:49:07,733 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 876 selfloop transitions, 51 changer transitions 0/932 dead transitions. [2021-03-25 07:49:07,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 932 transitions, 26757 flow [2021-03-25 07:49:07,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:49:07,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:49:07,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2021-03-25 07:49:07,734 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2021-03-25 07:49:07,734 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 200 transitions. [2021-03-25 07:49:07,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 200 transitions. [2021-03-25 07:49:07,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:07,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 200 transitions. [2021-03-25 07:49:07,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:07,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 60.0) internal successors, (420), 7 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:07,735 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 60.0) internal successors, (420), 7 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:07,735 INFO L185 Difference]: Start difference. First operand has 534 places, 914 transitions, 24316 flow. Second operand 6 states and 200 transitions. [2021-03-25 07:49:07,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 932 transitions, 26757 flow [2021-03-25 07:49:08,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 532 places, 932 transitions, 26586 flow, removed 30 selfloop flow, removed 7 redundant places. [2021-03-25 07:49:08,473 INFO L241 Difference]: Finished difference. Result has 536 places, 926 transitions, 24901 flow [2021-03-25 07:49:08,473 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=24155, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=914, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=866, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=24901, PETRI_PLACES=536, PETRI_TRANSITIONS=926} [2021-03-25 07:49:08,473 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 505 predicate places. [2021-03-25 07:49:08,473 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:08,474 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 536 places, 926 transitions, 24901 flow [2021-03-25 07:49:08,474 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 536 places, 926 transitions, 24901 flow [2021-03-25 07:49:08,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 536 places, 926 transitions, 24901 flow [2021-03-25 07:49:08,760 INFO L129 PetriNetUnfolder]: 543/1241 cut-off events. [2021-03-25 07:49:08,760 INFO L130 PetriNetUnfolder]: For 73814/74313 co-relation queries the response was YES. [2021-03-25 07:49:08,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15530 conditions, 1241 events. 543/1241 cut-off events. For 73814/74313 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 9405 event pairs, 10 based on Foata normal form. 51/1290 useless extension candidates. Maximal degree in co-relation 15248. Up to 375 conditions per place. [2021-03-25 07:49:08,791 INFO L142 LiptonReduction]: Number of co-enabled transitions 1718 [2021-03-25 07:49:08,882 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:08,883 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:08,883 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 410 [2021-03-25 07:49:08,883 INFO L480 AbstractCegarLoop]: Abstraction has has 536 places, 926 transitions, 24901 flow [2021-03-25 07:49:08,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:08,883 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:08,883 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:08,883 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-25 07:49:08,883 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:08,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:08,884 INFO L82 PathProgramCache]: Analyzing trace with hash -307655452, now seen corresponding path program 2 times [2021-03-25 07:49:08,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:08,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91546754] [2021-03-25 07:49:08,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:08,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:08,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:08,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:08,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:08,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:08,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:08,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:08,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:08,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:08,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:08,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:08,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:08,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:08,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:08,921 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:08,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:08,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91546754] [2021-03-25 07:49:08,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:08,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:49:08,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057644952] [2021-03-25 07:49:08,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:49:08,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:08,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:49:08,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:49:08,924 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:08,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 926 transitions, 24901 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:08,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:08,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:08,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:09,669 INFO L129 PetriNetUnfolder]: 793/1681 cut-off events. [2021-03-25 07:49:09,670 INFO L130 PetriNetUnfolder]: For 101281/101281 co-relation queries the response was YES. [2021-03-25 07:49:09,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22798 conditions, 1681 events. 793/1681 cut-off events. For 101281/101281 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 12248 event pairs, 12 based on Foata normal form. 1/1682 useless extension candidates. Maximal degree in co-relation 21991. Up to 1368 conditions per place. [2021-03-25 07:49:09,700 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 844 selfloop transitions, 93 changer transitions 4/946 dead transitions. [2021-03-25 07:49:09,700 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 946 transitions, 27296 flow [2021-03-25 07:49:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:49:09,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:49:09,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2021-03-25 07:49:09,701 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-25 07:49:09,701 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 231 transitions. [2021-03-25 07:49:09,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 231 transitions. [2021-03-25 07:49:09,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:09,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 231 transitions. [2021-03-25 07:49:09,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.0) internal successors, (231), 7 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:09,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:09,702 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:09,702 INFO L185 Difference]: Start difference. First operand has 536 places, 926 transitions, 24901 flow. Second operand 7 states and 231 transitions. [2021-03-25 07:49:09,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 946 transitions, 27296 flow [2021-03-25 07:49:10,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 946 transitions, 27148 flow, removed 74 selfloop flow, removed 0 redundant places. [2021-03-25 07:49:10,483 INFO L241 Difference]: Finished difference. Result has 545 places, 936 transitions, 25294 flow [2021-03-25 07:49:10,484 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=24753, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=839, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=25294, PETRI_PLACES=545, PETRI_TRANSITIONS=936} [2021-03-25 07:49:10,484 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 514 predicate places. [2021-03-25 07:49:10,484 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:10,484 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 545 places, 936 transitions, 25294 flow [2021-03-25 07:49:10,484 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 545 places, 936 transitions, 25294 flow [2021-03-25 07:49:10,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 545 places, 936 transitions, 25294 flow [2021-03-25 07:49:10,757 INFO L129 PetriNetUnfolder]: 545/1248 cut-off events. [2021-03-25 07:49:10,757 INFO L130 PetriNetUnfolder]: For 76798/76929 co-relation queries the response was YES. [2021-03-25 07:49:10,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15745 conditions, 1248 events. 545/1248 cut-off events. For 76798/76929 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 9483 event pairs, 2 based on Foata normal form. 16/1261 useless extension candidates. Maximal degree in co-relation 15458. Up to 374 conditions per place. [2021-03-25 07:49:10,790 INFO L142 LiptonReduction]: Number of co-enabled transitions 1694 [2021-03-25 07:49:10,935 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:10,935 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:10,936 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 452 [2021-03-25 07:49:10,936 INFO L480 AbstractCegarLoop]: Abstraction has has 545 places, 936 transitions, 25294 flow [2021-03-25 07:49:10,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:10,936 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:10,936 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:10,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-25 07:49:10,936 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:10,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:10,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1163692666, now seen corresponding path program 3 times [2021-03-25 07:49:10,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:10,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613064884] [2021-03-25 07:49:10,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:10,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:10,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:10,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:10,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:10,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:10,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:10,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:10,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:10,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:10,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:10,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:10,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:10,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:10,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:10,969 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:10,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:10,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:10,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613064884] [2021-03-25 07:49:10,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:10,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:49:10,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625336506] [2021-03-25 07:49:10,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:49:10,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:10,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:49:10,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:49:10,973 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:10,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 936 transitions, 25294 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:10,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:10,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:10,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:11,780 INFO L129 PetriNetUnfolder]: 787/1674 cut-off events. [2021-03-25 07:49:11,780 INFO L130 PetriNetUnfolder]: For 102778/102778 co-relation queries the response was YES. [2021-03-25 07:49:11,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22633 conditions, 1674 events. 787/1674 cut-off events. For 102778/102778 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 12235 event pairs, 11 based on Foata normal form. 1/1675 useless extension candidates. Maximal degree in co-relation 21772. Up to 1420 conditions per place. [2021-03-25 07:49:11,811 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 896 selfloop transitions, 43 changer transitions 2/946 dead transitions. [2021-03-25 07:49:11,811 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 946 transitions, 27326 flow [2021-03-25 07:49:11,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:49:11,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:49:11,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2021-03-25 07:49:11,812 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2021-03-25 07:49:11,812 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 200 transitions. [2021-03-25 07:49:11,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 200 transitions. [2021-03-25 07:49:11,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:11,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 200 transitions. [2021-03-25 07:49:11,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:11,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 60.0) internal successors, (420), 7 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:11,813 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 60.0) internal successors, (420), 7 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:11,813 INFO L185 Difference]: Start difference. First operand has 545 places, 936 transitions, 25294 flow. Second operand 6 states and 200 transitions. [2021-03-25 07:49:11,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 946 transitions, 27326 flow [2021-03-25 07:49:12,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 946 transitions, 27118 flow, removed 104 selfloop flow, removed 0 redundant places. [2021-03-25 07:49:12,539 INFO L241 Difference]: Finished difference. Result has 552 places, 938 transitions, 25297 flow [2021-03-25 07:49:12,540 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=25094, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=936, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=894, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=25297, PETRI_PLACES=552, PETRI_TRANSITIONS=938} [2021-03-25 07:49:12,540 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 521 predicate places. [2021-03-25 07:49:12,540 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:12,540 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 552 places, 938 transitions, 25297 flow [2021-03-25 07:49:12,540 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 552 places, 938 transitions, 25297 flow [2021-03-25 07:49:12,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 552 places, 938 transitions, 25297 flow [2021-03-25 07:49:12,822 INFO L129 PetriNetUnfolder]: 545/1253 cut-off events. [2021-03-25 07:49:12,822 INFO L130 PetriNetUnfolder]: For 76577/76843 co-relation queries the response was YES. [2021-03-25 07:49:12,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15726 conditions, 1253 events. 545/1253 cut-off events. For 76577/76843 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 9522 event pairs, 2 based on Foata normal form. 50/1300 useless extension candidates. Maximal degree in co-relation 15435. Up to 373 conditions per place. [2021-03-25 07:49:12,857 INFO L142 LiptonReduction]: Number of co-enabled transitions 1690 [2021-03-25 07:49:12,960 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:12,960 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:12,960 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 420 [2021-03-25 07:49:12,960 INFO L480 AbstractCegarLoop]: Abstraction has has 552 places, 938 transitions, 25297 flow [2021-03-25 07:49:12,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:12,961 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:12,961 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:12,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-25 07:49:12,961 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:12,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:12,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1171423064, now seen corresponding path program 4 times [2021-03-25 07:49:12,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:12,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277186524] [2021-03-25 07:49:12,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:12,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:12,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:12,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:12,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:12,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:12,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:12,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:12,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:12,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:12,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:12,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:12,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:13,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:13,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:13,003 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:13,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:13,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:13,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277186524] [2021-03-25 07:49:13,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:13,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:49:13,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923018231] [2021-03-25 07:49:13,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:49:13,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:13,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:49:13,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:49:13,006 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:13,007 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 938 transitions, 25297 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:13,007 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:13,007 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:13,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:13,873 INFO L129 PetriNetUnfolder]: 792/1683 cut-off events. [2021-03-25 07:49:13,873 INFO L130 PetriNetUnfolder]: For 104618/104618 co-relation queries the response was YES. [2021-03-25 07:49:13,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22900 conditions, 1683 events. 792/1683 cut-off events. For 104618/104618 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 12274 event pairs, 10 based on Foata normal form. 1/1684 useless extension candidates. Maximal degree in co-relation 22032. Up to 1428 conditions per place. [2021-03-25 07:49:13,909 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 901 selfloop transitions, 48 changer transitions 0/954 dead transitions. [2021-03-25 07:49:13,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 954 transitions, 27626 flow [2021-03-25 07:49:13,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:49:13,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:49:13,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2021-03-25 07:49:13,910 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2021-03-25 07:49:13,910 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 200 transitions. [2021-03-25 07:49:13,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 200 transitions. [2021-03-25 07:49:13,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:13,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 200 transitions. [2021-03-25 07:49:13,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:13,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 60.0) internal successors, (420), 7 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:13,911 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 60.0) internal successors, (420), 7 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:13,911 INFO L185 Difference]: Start difference. First operand has 552 places, 938 transitions, 25297 flow. Second operand 6 states and 200 transitions. [2021-03-25 07:49:13,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 954 transitions, 27626 flow [2021-03-25 07:49:14,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 556 places, 954 transitions, 27578 flow, removed 15 selfloop flow, removed 1 redundant places. [2021-03-25 07:49:14,763 INFO L241 Difference]: Finished difference. Result has 559 places, 948 transitions, 25808 flow [2021-03-25 07:49:14,764 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=25249, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=895, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=25808, PETRI_PLACES=559, PETRI_TRANSITIONS=948} [2021-03-25 07:49:14,764 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 528 predicate places. [2021-03-25 07:49:14,764 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:14,764 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 559 places, 948 transitions, 25808 flow [2021-03-25 07:49:14,764 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 559 places, 948 transitions, 25808 flow [2021-03-25 07:49:14,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 559 places, 948 transitions, 25808 flow [2021-03-25 07:49:15,085 INFO L129 PetriNetUnfolder]: 551/1270 cut-off events. [2021-03-25 07:49:15,086 INFO L130 PetriNetUnfolder]: For 80822/81082 co-relation queries the response was YES. [2021-03-25 07:49:15,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16210 conditions, 1270 events. 551/1270 cut-off events. For 80822/81082 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 9681 event pairs, 3 based on Foata normal form. 49/1317 useless extension candidates. Maximal degree in co-relation 15914. Up to 377 conditions per place. [2021-03-25 07:49:15,121 INFO L142 LiptonReduction]: Number of co-enabled transitions 1704 [2021-03-25 07:49:15,217 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:15,217 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:15,217 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 453 [2021-03-25 07:49:15,217 INFO L480 AbstractCegarLoop]: Abstraction has has 559 places, 948 transitions, 25808 flow [2021-03-25 07:49:15,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:15,217 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:15,218 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:15,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-25 07:49:15,218 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:15,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:15,218 INFO L82 PathProgramCache]: Analyzing trace with hash -546920642, now seen corresponding path program 5 times [2021-03-25 07:49:15,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:15,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419508200] [2021-03-25 07:49:15,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:15,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:15,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:15,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:15,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:15,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:15,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:15,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:15,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:15,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:15,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:15,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:15,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:15,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:15,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:15,267 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:15,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:15,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419508200] [2021-03-25 07:49:15,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:15,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:49:15,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036936785] [2021-03-25 07:49:15,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:49:15,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:15,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:49:15,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:49:15,271 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:15,271 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 948 transitions, 25808 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:15,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:15,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:15,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:16,105 INFO L129 PetriNetUnfolder]: 796/1699 cut-off events. [2021-03-25 07:49:16,105 INFO L130 PetriNetUnfolder]: For 108613/108613 co-relation queries the response was YES. [2021-03-25 07:49:16,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23391 conditions, 1699 events. 796/1699 cut-off events. For 108613/108613 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 12472 event pairs, 10 based on Foata normal form. 1/1700 useless extension candidates. Maximal degree in co-relation 22304. Up to 1412 conditions per place. [2021-03-25 07:49:16,141 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 878 selfloop transitions, 78 changer transitions 2/963 dead transitions. [2021-03-25 07:49:16,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 963 transitions, 28112 flow [2021-03-25 07:49:16,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:49:16,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:49:16,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2021-03-25 07:49:16,142 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-25 07:49:16,143 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 231 transitions. [2021-03-25 07:49:16,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 231 transitions. [2021-03-25 07:49:16,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:16,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 231 transitions. [2021-03-25 07:49:16,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.0) internal successors, (231), 7 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:16,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:16,144 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:16,144 INFO L185 Difference]: Start difference. First operand has 559 places, 948 transitions, 25808 flow. Second operand 7 states and 231 transitions. [2021-03-25 07:49:16,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 963 transitions, 28112 flow [2021-03-25 07:49:16,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 963 transitions, 27852 flow, removed 130 selfloop flow, removed 0 redundant places. [2021-03-25 07:49:16,960 INFO L241 Difference]: Finished difference. Result has 568 places, 955 transitions, 26103 flow [2021-03-25 07:49:16,961 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=25548, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=948, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=874, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26103, PETRI_PLACES=568, PETRI_TRANSITIONS=955} [2021-03-25 07:49:16,961 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 537 predicate places. [2021-03-25 07:49:16,961 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:16,961 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 568 places, 955 transitions, 26103 flow [2021-03-25 07:49:16,962 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 568 places, 955 transitions, 26103 flow [2021-03-25 07:49:16,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 568 places, 955 transitions, 26103 flow [2021-03-25 07:49:17,315 INFO L129 PetriNetUnfolder]: 553/1287 cut-off events. [2021-03-25 07:49:17,315 INFO L130 PetriNetUnfolder]: For 87252/87893 co-relation queries the response was YES. [2021-03-25 07:49:17,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16439 conditions, 1287 events. 553/1287 cut-off events. For 87252/87893 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 9839 event pairs, 2 based on Foata normal form. 66/1351 useless extension candidates. Maximal degree in co-relation 16138. Up to 379 conditions per place. [2021-03-25 07:49:17,351 INFO L142 LiptonReduction]: Number of co-enabled transitions 1704 [2021-03-25 07:49:17,467 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:17,467 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:17,468 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 507 [2021-03-25 07:49:17,468 INFO L480 AbstractCegarLoop]: Abstraction has has 568 places, 955 transitions, 26103 flow [2021-03-25 07:49:17,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:17,468 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:17,468 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:17,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-25 07:49:17,468 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:17,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:17,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1070414828, now seen corresponding path program 6 times [2021-03-25 07:49:17,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:17,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872632190] [2021-03-25 07:49:17,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:17,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:17,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:17,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:17,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:17,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:17,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:17,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:17,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:17,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:17,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:17,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:17,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:17,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:17,521 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:17,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:17,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:17,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872632190] [2021-03-25 07:49:17,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:17,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:49:17,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698265936] [2021-03-25 07:49:17,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:49:17,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:17,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:49:17,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:49:17,525 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:17,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 955 transitions, 26103 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:17,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:17,525 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:17,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:18,364 INFO L129 PetriNetUnfolder]: 793/1712 cut-off events. [2021-03-25 07:49:18,365 INFO L130 PetriNetUnfolder]: For 113090/113090 co-relation queries the response was YES. [2021-03-25 07:49:18,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23465 conditions, 1712 events. 793/1712 cut-off events. For 113090/113090 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 12731 event pairs, 18 based on Foata normal form. 1/1713 useless extension candidates. Maximal degree in co-relation 22351. Up to 1375 conditions per place. [2021-03-25 07:49:18,414 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 865 selfloop transitions, 92 changer transitions 5/967 dead transitions. [2021-03-25 07:49:18,415 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 967 transitions, 28210 flow [2021-03-25 07:49:18,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:49:18,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:49:18,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:49:18,416 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5523809523809524 [2021-03-25 07:49:18,416 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:49:18,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:49:18,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:18,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:49:18,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:18,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:18,417 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:18,417 INFO L185 Difference]: Start difference. First operand has 568 places, 955 transitions, 26103 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:49:18,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 967 transitions, 28210 flow [2021-03-25 07:49:19,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 967 transitions, 28004 flow, removed 96 selfloop flow, removed 1 redundant places. [2021-03-25 07:49:19,298 INFO L241 Difference]: Finished difference. Result has 575 places, 955 transitions, 26218 flow [2021-03-25 07:49:19,299 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=25907, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=864, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26218, PETRI_PLACES=575, PETRI_TRANSITIONS=955} [2021-03-25 07:49:19,299 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 544 predicate places. [2021-03-25 07:49:19,299 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:19,299 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 575 places, 955 transitions, 26218 flow [2021-03-25 07:49:19,299 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 575 places, 955 transitions, 26218 flow [2021-03-25 07:49:19,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 575 places, 955 transitions, 26218 flow [2021-03-25 07:49:19,617 INFO L129 PetriNetUnfolder]: 551/1287 cut-off events. [2021-03-25 07:49:19,617 INFO L130 PetriNetUnfolder]: For 84455/84609 co-relation queries the response was YES. [2021-03-25 07:49:19,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16439 conditions, 1287 events. 551/1287 cut-off events. For 84455/84609 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 9971 event pairs, 0 based on Foata normal form. 20/1306 useless extension candidates. Maximal degree in co-relation 16134. Up to 380 conditions per place. [2021-03-25 07:49:19,655 INFO L142 LiptonReduction]: Number of co-enabled transitions 1688 [2021-03-25 07:49:19,799 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:19,799 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:19,800 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 501 [2021-03-25 07:49:19,800 INFO L480 AbstractCegarLoop]: Abstraction has has 575 places, 955 transitions, 26218 flow [2021-03-25 07:49:19,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:19,800 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:19,800 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:19,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-25 07:49:19,800 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:19,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:19,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1910260686, now seen corresponding path program 7 times [2021-03-25 07:49:19,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:19,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219538725] [2021-03-25 07:49:19,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:19,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:19,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:19,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:19,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:19,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:19,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:19,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:19,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:19,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:19,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:19,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:19,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:19,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:19,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:19,847 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:19,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:19,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219538725] [2021-03-25 07:49:19,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:19,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:49:19,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973702470] [2021-03-25 07:49:19,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:49:19,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:19,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:49:19,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:49:19,850 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:19,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 955 transitions, 26218 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:19,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:19,851 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:19,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:20,734 INFO L129 PetriNetUnfolder]: 791/1708 cut-off events. [2021-03-25 07:49:20,734 INFO L130 PetriNetUnfolder]: For 111820/111820 co-relation queries the response was YES. [2021-03-25 07:49:20,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23618 conditions, 1708 events. 791/1708 cut-off events. For 111820/111820 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 12663 event pairs, 16 based on Foata normal form. 1/1709 useless extension candidates. Maximal degree in co-relation 22617. Up to 1388 conditions per place. [2021-03-25 07:49:20,771 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 876 selfloop transitions, 87 changer transitions 0/968 dead transitions. [2021-03-25 07:49:20,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 968 transitions, 28438 flow [2021-03-25 07:49:20,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:49:20,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:49:20,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:49:20,772 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5523809523809524 [2021-03-25 07:49:20,772 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:49:20,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:49:20,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:20,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:49:20,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:20,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:20,773 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:20,773 INFO L185 Difference]: Start difference. First operand has 575 places, 955 transitions, 26218 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:49:20,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 968 transitions, 28438 flow [2021-03-25 07:49:21,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 968 transitions, 28363 flow, removed 16 selfloop flow, removed 2 redundant places. [2021-03-25 07:49:21,660 INFO L241 Difference]: Finished difference. Result has 581 places, 961 transitions, 26644 flow [2021-03-25 07:49:21,661 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=26143, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=871, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26644, PETRI_PLACES=581, PETRI_TRANSITIONS=961} [2021-03-25 07:49:21,661 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 550 predicate places. [2021-03-25 07:49:21,661 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:21,661 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 581 places, 961 transitions, 26644 flow [2021-03-25 07:49:21,662 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 581 places, 961 transitions, 26644 flow [2021-03-25 07:49:21,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 581 places, 961 transitions, 26644 flow [2021-03-25 07:49:21,991 INFO L129 PetriNetUnfolder]: 554/1298 cut-off events. [2021-03-25 07:49:21,992 INFO L130 PetriNetUnfolder]: For 89023/89324 co-relation queries the response was YES. [2021-03-25 07:49:22,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16809 conditions, 1298 events. 554/1298 cut-off events. For 89023/89324 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 10054 event pairs, 0 based on Foata normal form. 65/1360 useless extension candidates. Maximal degree in co-relation 16500. Up to 383 conditions per place. [2021-03-25 07:49:22,032 INFO L142 LiptonReduction]: Number of co-enabled transitions 1700 [2021-03-25 07:49:22,137 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:22,137 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:22,138 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 477 [2021-03-25 07:49:22,138 INFO L480 AbstractCegarLoop]: Abstraction has has 581 places, 961 transitions, 26644 flow [2021-03-25 07:49:22,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:22,138 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:22,138 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:22,138 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-25 07:49:22,138 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:22,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:22,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1051980802, now seen corresponding path program 8 times [2021-03-25 07:49:22,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:22,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107738987] [2021-03-25 07:49:22,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:22,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:22,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:22,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:22,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:22,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:22,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:22,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:22,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:22,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:22,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:22,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:22,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:22,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:22,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:22,194 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:22,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:22,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:22,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107738987] [2021-03-25 07:49:22,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:22,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:49:22,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673109364] [2021-03-25 07:49:22,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:49:22,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:22,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:49:22,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:49:22,197 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:22,197 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 961 transitions, 26644 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:22,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:22,197 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:22,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:23,104 INFO L129 PetriNetUnfolder]: 796/1731 cut-off events. [2021-03-25 07:49:23,105 INFO L130 PetriNetUnfolder]: For 118056/118056 co-relation queries the response was YES. [2021-03-25 07:49:23,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24218 conditions, 1731 events. 796/1731 cut-off events. For 118056/118056 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 12943 event pairs, 22 based on Foata normal form. 1/1732 useless extension candidates. Maximal degree in co-relation 23214. Up to 1340 conditions per place. [2021-03-25 07:49:23,146 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 824 selfloop transitions, 145 changer transitions 4/978 dead transitions. [2021-03-25 07:49:23,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 978 transitions, 29068 flow [2021-03-25 07:49:23,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:49:23,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:49:23,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:49:23,147 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5479166666666667 [2021-03-25 07:49:23,147 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:49:23,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:49:23,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:23,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:49:23,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:23,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:23,148 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:23,148 INFO L185 Difference]: Start difference. First operand has 581 places, 961 transitions, 26644 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:49:23,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 978 transitions, 29068 flow [2021-03-25 07:49:24,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 978 transitions, 28875 flow, removed 76 selfloop flow, removed 2 redundant places. [2021-03-25 07:49:24,020 INFO L241 Difference]: Finished difference. Result has 588 places, 967 transitions, 27214 flow [2021-03-25 07:49:24,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=26451, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=27214, PETRI_PLACES=588, PETRI_TRANSITIONS=967} [2021-03-25 07:49:24,021 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 557 predicate places. [2021-03-25 07:49:24,021 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:24,021 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 588 places, 967 transitions, 27214 flow [2021-03-25 07:49:24,021 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 588 places, 967 transitions, 27214 flow [2021-03-25 07:49:24,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 588 places, 967 transitions, 27214 flow [2021-03-25 07:49:24,361 INFO L129 PetriNetUnfolder]: 557/1310 cut-off events. [2021-03-25 07:49:24,362 INFO L130 PetriNetUnfolder]: For 91536/92109 co-relation queries the response was YES. [2021-03-25 07:49:24,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17225 conditions, 1310 events. 557/1310 cut-off events. For 91536/92109 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 10159 event pairs, 0 based on Foata normal form. 59/1368 useless extension candidates. Maximal degree in co-relation 16912. Up to 385 conditions per place. [2021-03-25 07:49:24,457 INFO L142 LiptonReduction]: Number of co-enabled transitions 1682 [2021-03-25 07:49:24,557 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:24,557 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:24,557 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 536 [2021-03-25 07:49:24,557 INFO L480 AbstractCegarLoop]: Abstraction has has 588 places, 967 transitions, 27214 flow [2021-03-25 07:49:24,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:24,557 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:24,557 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:24,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-25 07:49:24,558 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:24,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:24,558 INFO L82 PathProgramCache]: Analyzing trace with hash 906005242, now seen corresponding path program 9 times [2021-03-25 07:49:24,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:24,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342288525] [2021-03-25 07:49:24,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:24,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:24,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:24,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:24,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:24,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:24,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:24,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:24,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:24,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:24,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:49:24,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:24,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:24,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:24,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:24,594 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:24,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:24,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:24,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342288525] [2021-03-25 07:49:24,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:24,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:49:24,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243398652] [2021-03-25 07:49:24,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:49:24,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:24,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:49:24,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:49:24,598 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:24,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 967 transitions, 27214 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:24,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:24,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:24,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:25,526 INFO L129 PetriNetUnfolder]: 800/1735 cut-off events. [2021-03-25 07:49:25,526 INFO L130 PetriNetUnfolder]: For 122697/122697 co-relation queries the response was YES. [2021-03-25 07:49:25,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24715 conditions, 1735 events. 800/1735 cut-off events. For 122697/122697 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 12938 event pairs, 9 based on Foata normal form. 1/1736 useless extension candidates. Maximal degree in co-relation 23751. Up to 1470 conditions per place. [2021-03-25 07:49:25,572 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 941 selfloop transitions, 37 changer transitions 0/983 dead transitions. [2021-03-25 07:49:25,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 983 transitions, 29694 flow [2021-03-25 07:49:25,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:49:25,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:49:25,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2021-03-25 07:49:25,574 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2021-03-25 07:49:25,574 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 200 transitions. [2021-03-25 07:49:25,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 200 transitions. [2021-03-25 07:49:25,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:25,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 200 transitions. [2021-03-25 07:49:25,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:25,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 60.0) internal successors, (420), 7 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:25,575 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 60.0) internal successors, (420), 7 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:25,575 INFO L185 Difference]: Start difference. First operand has 588 places, 967 transitions, 27214 flow. Second operand 6 states and 200 transitions. [2021-03-25 07:49:25,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 983 transitions, 29694 flow [2021-03-25 07:49:26,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 983 transitions, 29402 flow, removed 114 selfloop flow, removed 2 redundant places. [2021-03-25 07:49:26,480 INFO L241 Difference]: Finished difference. Result has 593 places, 977 transitions, 27529 flow [2021-03-25 07:49:26,481 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=26944, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=967, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=27529, PETRI_PLACES=593, PETRI_TRANSITIONS=977} [2021-03-25 07:49:26,481 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 562 predicate places. [2021-03-25 07:49:26,481 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:26,481 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 593 places, 977 transitions, 27529 flow [2021-03-25 07:49:26,481 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 593 places, 977 transitions, 27529 flow [2021-03-25 07:49:26,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 593 places, 977 transitions, 27529 flow [2021-03-25 07:49:26,969 INFO L129 PetriNetUnfolder]: 565/1322 cut-off events. [2021-03-25 07:49:26,969 INFO L130 PetriNetUnfolder]: For 96201/96876 co-relation queries the response was YES. [2021-03-25 07:49:26,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17523 conditions, 1322 events. 565/1322 cut-off events. For 96201/96876 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 10262 event pairs, 1 based on Foata normal form. 64/1384 useless extension candidates. Maximal degree in co-relation 17207. Up to 388 conditions per place. [2021-03-25 07:49:27,013 INFO L142 LiptonReduction]: Number of co-enabled transitions 1694 [2021-03-25 07:49:27,130 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:27,130 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:27,130 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 649 [2021-03-25 07:49:27,130 INFO L480 AbstractCegarLoop]: Abstraction has has 593 places, 977 transitions, 27529 flow [2021-03-25 07:49:27,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:27,130 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:27,130 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:27,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-25 07:49:27,131 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:27,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:27,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1742877870, now seen corresponding path program 10 times [2021-03-25 07:49:27,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:27,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406416079] [2021-03-25 07:49:27,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:27,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:27,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:27,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:27,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:27,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:27,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:27,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:27,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:27,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:27,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:49:27,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:27,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:27,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:27,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:27,170 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:27,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:27,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:27,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406416079] [2021-03-25 07:49:27,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:27,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:49:27,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830413873] [2021-03-25 07:49:27,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:49:27,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:27,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:49:27,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:49:27,174 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:27,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 977 transitions, 27529 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:27,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:27,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:27,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:28,120 INFO L129 PetriNetUnfolder]: 811/1757 cut-off events. [2021-03-25 07:49:28,120 INFO L130 PetriNetUnfolder]: For 127952/127952 co-relation queries the response was YES. [2021-03-25 07:49:28,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25199 conditions, 1757 events. 811/1757 cut-off events. For 127952/127952 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 13124 event pairs, 7 based on Foata normal form. 1/1758 useless extension candidates. Maximal degree in co-relation 24233. Up to 1463 conditions per place. [2021-03-25 07:49:28,157 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 923 selfloop transitions, 68 changer transitions 0/996 dead transitions. [2021-03-25 07:49:28,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 599 places, 996 transitions, 30187 flow [2021-03-25 07:49:28,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:49:28,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:49:28,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2021-03-25 07:49:28,158 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-25 07:49:28,158 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 231 transitions. [2021-03-25 07:49:28,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 231 transitions. [2021-03-25 07:49:28,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:28,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 231 transitions. [2021-03-25 07:49:28,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.0) internal successors, (231), 7 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:28,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:28,159 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:28,159 INFO L185 Difference]: Start difference. First operand has 593 places, 977 transitions, 27529 flow. Second operand 7 states and 231 transitions. [2021-03-25 07:49:28,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 599 places, 996 transitions, 30187 flow [2021-03-25 07:49:29,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 996 transitions, 29839 flow, removed 174 selfloop flow, removed 0 redundant places. [2021-03-25 07:49:29,092 INFO L241 Difference]: Finished difference. Result has 600 places, 990 transitions, 28003 flow [2021-03-25 07:49:29,093 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=27181, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=977, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=918, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28003, PETRI_PLACES=600, PETRI_TRANSITIONS=990} [2021-03-25 07:49:29,093 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 569 predicate places. [2021-03-25 07:49:29,093 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:29,093 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 600 places, 990 transitions, 28003 flow [2021-03-25 07:49:29,093 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 600 places, 990 transitions, 28003 flow [2021-03-25 07:49:29,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 600 places, 990 transitions, 28003 flow [2021-03-25 07:49:29,464 INFO L129 PetriNetUnfolder]: 576/1349 cut-off events. [2021-03-25 07:49:29,464 INFO L130 PetriNetUnfolder]: For 100418/101100 co-relation queries the response was YES. [2021-03-25 07:49:29,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17951 conditions, 1349 events. 576/1349 cut-off events. For 100418/101100 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 10489 event pairs, 3 based on Foata normal form. 64/1412 useless extension candidates. Maximal degree in co-relation 17632. Up to 394 conditions per place. [2021-03-25 07:49:29,513 INFO L142 LiptonReduction]: Number of co-enabled transitions 1710 [2021-03-25 07:49:29,679 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:29,679 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:29,680 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 587 [2021-03-25 07:49:29,680 INFO L480 AbstractCegarLoop]: Abstraction has has 600 places, 990 transitions, 28003 flow [2021-03-25 07:49:29,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:29,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:29,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:29,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-25 07:49:29,680 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:29,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:29,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1670618348, now seen corresponding path program 11 times [2021-03-25 07:49:29,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:29,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666052395] [2021-03-25 07:49:29,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:29,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:29,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:29,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:29,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:29,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:29,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:29,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:29,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:29,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:29,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:49:29,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:29,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:29,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:29,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:29,728 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:29,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:29,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666052395] [2021-03-25 07:49:29,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:29,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:49:29,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735946525] [2021-03-25 07:49:29,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:49:29,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:29,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:49:29,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:49:29,732 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:29,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 990 transitions, 28003 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:29,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:29,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:29,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:30,706 INFO L129 PetriNetUnfolder]: 820/1778 cut-off events. [2021-03-25 07:49:30,706 INFO L130 PetriNetUnfolder]: For 133950/133950 co-relation queries the response was YES. [2021-03-25 07:49:30,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25640 conditions, 1778 events. 820/1778 cut-off events. For 133950/133950 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 13309 event pairs, 12 based on Foata normal form. 1/1779 useless extension candidates. Maximal degree in co-relation 24672. Up to 1444 conditions per place. [2021-03-25 07:49:30,747 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 914 selfloop transitions, 90 changer transitions 0/1009 dead transitions. [2021-03-25 07:49:30,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 606 places, 1009 transitions, 30657 flow [2021-03-25 07:49:30,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:49:30,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:49:30,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:49:30,748 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5523809523809524 [2021-03-25 07:49:30,748 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:49:30,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:49:30,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:30,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:49:30,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:30,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:30,749 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:30,749 INFO L185 Difference]: Start difference. First operand has 600 places, 990 transitions, 28003 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:49:30,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 606 places, 1009 transitions, 30657 flow [2021-03-25 07:49:31,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 1009 transitions, 30124 flow, removed 258 selfloop flow, removed 1 redundant places. [2021-03-25 07:49:31,807 INFO L241 Difference]: Finished difference. Result has 607 places, 1002 transitions, 28328 flow [2021-03-25 07:49:31,808 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=27496, PETRI_DIFFERENCE_MINUEND_PLACES=599, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=990, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=908, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28328, PETRI_PLACES=607, PETRI_TRANSITIONS=1002} [2021-03-25 07:49:31,808 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 576 predicate places. [2021-03-25 07:49:31,808 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:31,808 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 607 places, 1002 transitions, 28328 flow [2021-03-25 07:49:31,808 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 607 places, 1002 transitions, 28328 flow [2021-03-25 07:49:31,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 607 places, 1002 transitions, 28328 flow [2021-03-25 07:49:32,181 INFO L129 PetriNetUnfolder]: 585/1371 cut-off events. [2021-03-25 07:49:32,181 INFO L130 PetriNetUnfolder]: For 96704/97255 co-relation queries the response was YES. [2021-03-25 07:49:32,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18154 conditions, 1371 events. 585/1371 cut-off events. For 96704/97255 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 10691 event pairs, 1 based on Foata normal form. 47/1416 useless extension candidates. Maximal degree in co-relation 17832. Up to 400 conditions per place. [2021-03-25 07:49:32,224 INFO L142 LiptonReduction]: Number of co-enabled transitions 1726 [2021-03-25 07:49:32,339 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:32,339 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:32,340 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 532 [2021-03-25 07:49:32,340 INFO L480 AbstractCegarLoop]: Abstraction has has 607 places, 1002 transitions, 28328 flow [2021-03-25 07:49:32,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:32,340 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:32,340 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:32,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-25 07:49:32,340 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:32,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:32,340 INFO L82 PathProgramCache]: Analyzing trace with hash 24534164, now seen corresponding path program 12 times [2021-03-25 07:49:32,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:32,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006854655] [2021-03-25 07:49:32,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:32,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:32,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:32,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:32,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:32,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:32,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:32,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:32,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:32,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:32,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:49:32,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:32,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:32,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:32,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:32,399 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:32,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:32,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:32,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006854655] [2021-03-25 07:49:32,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:32,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:49:32,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609707596] [2021-03-25 07:49:32,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:49:32,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:32,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:49:32,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:49:32,403 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:32,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 1002 transitions, 28328 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:32,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:32,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:32,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:33,405 INFO L129 PetriNetUnfolder]: 832/1804 cut-off events. [2021-03-25 07:49:33,405 INFO L130 PetriNetUnfolder]: For 135745/135745 co-relation queries the response was YES. [2021-03-25 07:49:33,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26056 conditions, 1804 events. 832/1804 cut-off events. For 135745/135745 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 13557 event pairs, 9 based on Foata normal form. 1/1805 useless extension candidates. Maximal degree in co-relation 24847. Up to 1461 conditions per place. [2021-03-25 07:49:33,446 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 903 selfloop transitions, 115 changer transitions 0/1023 dead transitions. [2021-03-25 07:49:33,447 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 1023 transitions, 31156 flow [2021-03-25 07:49:33,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:49:33,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:49:33,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:49:33,448 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5458333333333333 [2021-03-25 07:49:33,448 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:49:33,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:49:33,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:33,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:49:33,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:33,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:33,448 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:33,449 INFO L185 Difference]: Start difference. First operand has 607 places, 1002 transitions, 28328 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:49:33,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 1023 transitions, 31156 flow [2021-03-25 07:49:34,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 1023 transitions, 30784 flow, removed 186 selfloop flow, removed 0 redundant places. [2021-03-25 07:49:34,476 INFO L241 Difference]: Finished difference. Result has 615 places, 1017 transitions, 29003 flow [2021-03-25 07:49:34,476 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=27956, PETRI_DIFFERENCE_MINUEND_PLACES=607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1002, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=898, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=29003, PETRI_PLACES=615, PETRI_TRANSITIONS=1017} [2021-03-25 07:49:34,476 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 584 predicate places. [2021-03-25 07:49:34,477 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:34,477 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 615 places, 1017 transitions, 29003 flow [2021-03-25 07:49:34,477 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 615 places, 1017 transitions, 29003 flow [2021-03-25 07:49:34,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 615 places, 1017 transitions, 29003 flow [2021-03-25 07:49:34,851 INFO L129 PetriNetUnfolder]: 597/1406 cut-off events. [2021-03-25 07:49:34,851 INFO L130 PetriNetUnfolder]: For 102991/103596 co-relation queries the response was YES. [2021-03-25 07:49:34,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18745 conditions, 1406 events. 597/1406 cut-off events. For 102991/103596 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 11028 event pairs, 5 based on Foata normal form. 59/1464 useless extension candidates. Maximal degree in co-relation 18420. Up to 408 conditions per place. [2021-03-25 07:49:34,892 INFO L142 LiptonReduction]: Number of co-enabled transitions 1748 [2021-03-25 07:49:34,998 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:34,998 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:34,998 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 521 [2021-03-25 07:49:34,998 INFO L480 AbstractCegarLoop]: Abstraction has has 615 places, 1017 transitions, 29003 flow [2021-03-25 07:49:34,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:34,999 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:34,999 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:34,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-25 07:49:34,999 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:34,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:34,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1753581498, now seen corresponding path program 13 times [2021-03-25 07:49:34,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:34,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803074483] [2021-03-25 07:49:34,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:35,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:35,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:35,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:35,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:35,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:35,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:35,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:35,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:35,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:35,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:49:35,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:35,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:35,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:35,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:35,043 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:35,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:35,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:35,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803074483] [2021-03-25 07:49:35,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:35,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:49:35,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803934514] [2021-03-25 07:49:35,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:49:35,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:35,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:49:35,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:49:35,046 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:35,046 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 1017 transitions, 29003 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:35,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:35,046 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:35,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:36,019 INFO L129 PetriNetUnfolder]: 845/1841 cut-off events. [2021-03-25 07:49:36,019 INFO L130 PetriNetUnfolder]: For 141831/141831 co-relation queries the response was YES. [2021-03-25 07:49:36,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26837 conditions, 1841 events. 845/1841 cut-off events. For 141831/141831 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 13944 event pairs, 8 based on Foata normal form. 1/1842 useless extension candidates. Maximal degree in co-relation 25671. Up to 1522 conditions per place. [2021-03-25 07:49:36,058 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 952 selfloop transitions, 86 changer transitions 0/1043 dead transitions. [2021-03-25 07:49:36,058 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 1043 transitions, 32053 flow [2021-03-25 07:49:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:49:36,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:49:36,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:49:36,059 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5458333333333333 [2021-03-25 07:49:36,059 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:49:36,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:49:36,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:36,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:49:36,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:36,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:36,060 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:36,060 INFO L185 Difference]: Start difference. First operand has 615 places, 1017 transitions, 29003 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:49:36,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 1043 transitions, 32053 flow [2021-03-25 07:49:37,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 1043 transitions, 31523 flow, removed 253 selfloop flow, removed 1 redundant places. [2021-03-25 07:49:37,081 INFO L241 Difference]: Finished difference. Result has 624 places, 1037 transitions, 29693 flow [2021-03-25 07:49:37,082 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=28473, PETRI_DIFFERENCE_MINUEND_PLACES=614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1017, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=29693, PETRI_PLACES=624, PETRI_TRANSITIONS=1037} [2021-03-25 07:49:37,082 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 593 predicate places. [2021-03-25 07:49:37,082 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:37,082 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 624 places, 1037 transitions, 29693 flow [2021-03-25 07:49:37,082 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 624 places, 1037 transitions, 29693 flow [2021-03-25 07:49:37,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 624 places, 1037 transitions, 29693 flow [2021-03-25 07:49:37,574 INFO L129 PetriNetUnfolder]: 610/1428 cut-off events. [2021-03-25 07:49:37,575 INFO L130 PetriNetUnfolder]: For 106836/107388 co-relation queries the response was YES. [2021-03-25 07:49:37,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19303 conditions, 1428 events. 610/1428 cut-off events. For 106836/107388 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 11244 event pairs, 0 based on Foata normal form. 47/1473 useless extension candidates. Maximal degree in co-relation 18974. Up to 416 conditions per place. [2021-03-25 07:49:37,619 INFO L142 LiptonReduction]: Number of co-enabled transitions 1776 [2021-03-25 07:49:37,743 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:37,743 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:37,743 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 661 [2021-03-25 07:49:37,743 INFO L480 AbstractCegarLoop]: Abstraction has has 624 places, 1037 transitions, 29693 flow [2021-03-25 07:49:37,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:37,743 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:37,743 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:37,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-25 07:49:37,744 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:37,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:37,744 INFO L82 PathProgramCache]: Analyzing trace with hash 297396244, now seen corresponding path program 14 times [2021-03-25 07:49:37,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:37,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351490266] [2021-03-25 07:49:37,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:37,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:37,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:37,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:37,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:37,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:37,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:37,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:37,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:37,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:37,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:49:37,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:37,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:37,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:37,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:37,794 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:37,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:37,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:37,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351490266] [2021-03-25 07:49:37,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:37,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:49:37,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680514802] [2021-03-25 07:49:37,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:49:37,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:37,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:49:37,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:49:37,798 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2021-03-25 07:49:37,798 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 624 places, 1037 transitions, 29693 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:37,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:37,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2021-03-25 07:49:37,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:38,755 INFO L129 PetriNetUnfolder]: 855/1867 cut-off events. [2021-03-25 07:49:38,755 INFO L130 PetriNetUnfolder]: For 148272/148272 co-relation queries the response was YES. [2021-03-25 07:49:38,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27343 conditions, 1867 events. 855/1867 cut-off events. For 148272/148272 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 14251 event pairs, 12 based on Foata normal form. 1/1868 useless extension candidates. Maximal degree in co-relation 26148. Up to 1489 conditions per place. [2021-03-25 07:49:38,795 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 934 selfloop transitions, 121 changer transitions 2/1062 dead transitions. [2021-03-25 07:49:38,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 1062 transitions, 32852 flow [2021-03-25 07:49:38,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:49:38,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:49:38,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:49:38,797 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5479166666666667 [2021-03-25 07:49:38,797 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:49:38,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:49:38,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:38,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:49:38,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:38,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:38,798 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:38,798 INFO L185 Difference]: Start difference. First operand has 624 places, 1037 transitions, 29693 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:49:38,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 1062 transitions, 32852 flow [2021-03-25 07:49:39,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 1062 transitions, 32179 flow, removed 332 selfloop flow, removed 1 redundant places. [2021-03-25 07:49:39,915 INFO L241 Difference]: Finished difference. Result has 632 places, 1053 transitions, 30243 flow [2021-03-25 07:49:39,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=29154, PETRI_DIFFERENCE_MINUEND_PLACES=623, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1037, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=30243, PETRI_PLACES=632, PETRI_TRANSITIONS=1053} [2021-03-25 07:49:39,915 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 601 predicate places. [2021-03-25 07:49:39,916 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:39,916 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 632 places, 1053 transitions, 30243 flow [2021-03-25 07:49:39,916 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 632 places, 1053 transitions, 30243 flow [2021-03-25 07:49:39,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 632 places, 1053 transitions, 30243 flow [2021-03-25 07:49:40,303 INFO L129 PetriNetUnfolder]: 616/1455 cut-off events. [2021-03-25 07:49:40,303 INFO L130 PetriNetUnfolder]: For 110113/110826 co-relation queries the response was YES. [2021-03-25 07:49:40,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19473 conditions, 1455 events. 616/1455 cut-off events. For 110113/110826 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 11566 event pairs, 1 based on Foata normal form. 63/1516 useless extension candidates. Maximal degree in co-relation 19141. Up to 416 conditions per place. [2021-03-25 07:49:40,350 INFO L142 LiptonReduction]: Number of co-enabled transitions 1782 [2021-03-25 07:49:40,681 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 07:49:40,681 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 07:49:40,681 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 766 [2021-03-25 07:49:40,681 INFO L480 AbstractCegarLoop]: Abstraction has has 632 places, 1053 transitions, 30321 flow [2021-03-25 07:49:40,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:40,682 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:40,682 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:40,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-25 07:49:40,682 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:40,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:40,682 INFO L82 PathProgramCache]: Analyzing trace with hash 379309648, now seen corresponding path program 15 times [2021-03-25 07:49:40,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:40,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677417540] [2021-03-25 07:49:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:40,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:40,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:40,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:40,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:40,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:40,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:40,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:40,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:40,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:40,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:40,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:40,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:40,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:40,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:40,714 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:40,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:40,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677417540] [2021-03-25 07:49:40,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:40,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:49:40,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964484113] [2021-03-25 07:49:40,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:49:40,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:40,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:49:40,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:49:40,718 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2021-03-25 07:49:40,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 1053 transitions, 30321 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:40,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:40,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2021-03-25 07:49:40,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:41,729 INFO L129 PetriNetUnfolder]: 855/1874 cut-off events. [2021-03-25 07:49:41,730 INFO L130 PetriNetUnfolder]: For 144630/144630 co-relation queries the response was YES. [2021-03-25 07:49:41,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27322 conditions, 1874 events. 855/1874 cut-off events. For 144630/144630 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 14350 event pairs, 9 based on Foata normal form. 1/1872 useless extension candidates. Maximal degree in co-relation 26171. Up to 1558 conditions per place. [2021-03-25 07:49:41,770 INFO L132 encePairwiseOnDemand]: 53/62 looper letters, 1000 selfloop transitions, 65 changer transitions 0/1070 dead transitions. [2021-03-25 07:49:41,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 1070 transitions, 33009 flow [2021-03-25 07:49:41,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:49:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:49:41,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:49:41,771 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.543010752688172 [2021-03-25 07:49:41,771 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:49:41,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:49:41,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:41,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:49:41,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:41,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 62.0) internal successors, (434), 7 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:41,772 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 62.0) internal successors, (434), 7 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:41,772 INFO L185 Difference]: Start difference. First operand has 632 places, 1053 transitions, 30321 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:49:41,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 1070 transitions, 33009 flow [2021-03-25 07:49:42,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 636 places, 1070 transitions, 32383 flow, removed 294 selfloop flow, removed 1 redundant places. [2021-03-25 07:49:42,949 INFO L241 Difference]: Finished difference. Result has 640 places, 1064 transitions, 30466 flow [2021-03-25 07:49:42,949 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=29697, PETRI_DIFFERENCE_MINUEND_PLACES=631, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=992, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=30466, PETRI_PLACES=640, PETRI_TRANSITIONS=1064} [2021-03-25 07:49:42,949 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 609 predicate places. [2021-03-25 07:49:42,949 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:42,950 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 640 places, 1064 transitions, 30466 flow [2021-03-25 07:49:42,950 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 640 places, 1064 transitions, 30466 flow [2021-03-25 07:49:42,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 640 places, 1064 transitions, 30466 flow [2021-03-25 07:49:43,349 INFO L129 PetriNetUnfolder]: 621/1477 cut-off events. [2021-03-25 07:49:43,349 INFO L130 PetriNetUnfolder]: For 111520/112224 co-relation queries the response was YES. [2021-03-25 07:49:43,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19593 conditions, 1477 events. 621/1477 cut-off events. For 111520/112224 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 11820 event pairs, 1 based on Foata normal form. 63/1538 useless extension candidates. Maximal degree in co-relation 19256. Up to 418 conditions per place. [2021-03-25 07:49:43,396 INFO L142 LiptonReduction]: Number of co-enabled transitions 1792 [2021-03-25 07:49:43,526 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:43,526 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:43,526 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 577 [2021-03-25 07:49:43,526 INFO L480 AbstractCegarLoop]: Abstraction has has 640 places, 1064 transitions, 30466 flow [2021-03-25 07:49:43,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:43,526 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:43,526 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:43,527 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-25 07:49:43,527 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:43,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:43,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1009085962, now seen corresponding path program 16 times [2021-03-25 07:49:43,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:43,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438846422] [2021-03-25 07:49:43,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:43,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:43,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:43,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:43,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:43,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:43,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:43,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:43,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:43,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:43,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:43,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:43,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:43,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:43,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:43,569 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:43,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:43,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438846422] [2021-03-25 07:49:43,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:43,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:49:43,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496372096] [2021-03-25 07:49:43,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:49:43,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:43,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:49:43,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:49:43,572 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2021-03-25 07:49:43,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 640 places, 1064 transitions, 30466 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:43,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:43,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2021-03-25 07:49:43,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:44,645 INFO L129 PetriNetUnfolder]: 860/1888 cut-off events. [2021-03-25 07:49:44,646 INFO L130 PetriNetUnfolder]: For 150025/150025 co-relation queries the response was YES. [2021-03-25 07:49:44,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27438 conditions, 1888 events. 860/1888 cut-off events. For 150025/150025 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 14491 event pairs, 13 based on Foata normal form. 1/1889 useless extension candidates. Maximal degree in co-relation 26767. Up to 1523 conditions per place. [2021-03-25 07:49:44,683 INFO L132 encePairwiseOnDemand]: 53/62 looper letters, 966 selfloop transitions, 111 changer transitions 0/1082 dead transitions. [2021-03-25 07:49:44,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 1082 transitions, 33194 flow [2021-03-25 07:49:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:49:44,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:49:44,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:49:44,684 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5391705069124424 [2021-03-25 07:49:44,684 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:49:44,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:49:44,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:44,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:49:44,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:44,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 62.0) internal successors, (496), 8 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:44,685 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 62.0) internal successors, (496), 8 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:44,685 INFO L185 Difference]: Start difference. First operand has 640 places, 1064 transitions, 30466 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:49:44,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 1082 transitions, 33194 flow [2021-03-25 07:49:45,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 646 places, 1082 transitions, 32982 flow, removed 106 selfloop flow, removed 0 redundant places. [2021-03-25 07:49:45,808 INFO L241 Difference]: Finished difference. Result has 649 places, 1075 transitions, 31138 flow [2021-03-25 07:49:45,808 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=30254, PETRI_DIFFERENCE_MINUEND_PLACES=640, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1064, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31138, PETRI_PLACES=649, PETRI_TRANSITIONS=1075} [2021-03-25 07:49:45,808 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 618 predicate places. [2021-03-25 07:49:45,808 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:45,809 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 649 places, 1075 transitions, 31138 flow [2021-03-25 07:49:45,809 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 649 places, 1075 transitions, 31138 flow [2021-03-25 07:49:45,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 649 places, 1075 transitions, 31138 flow [2021-03-25 07:49:46,225 INFO L129 PetriNetUnfolder]: 626/1497 cut-off events. [2021-03-25 07:49:46,225 INFO L130 PetriNetUnfolder]: For 114550/115159 co-relation queries the response was YES. [2021-03-25 07:49:46,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20087 conditions, 1497 events. 626/1497 cut-off events. For 114550/115159 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 12076 event pairs, 1 based on Foata normal form. 58/1553 useless extension candidates. Maximal degree in co-relation 19745. Up to 424 conditions per place. [2021-03-25 07:49:46,282 INFO L142 LiptonReduction]: Number of co-enabled transitions 1802 [2021-03-25 07:49:46,415 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:46,416 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:46,416 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 608 [2021-03-25 07:49:46,416 INFO L480 AbstractCegarLoop]: Abstraction has has 649 places, 1075 transitions, 31138 flow [2021-03-25 07:49:46,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:46,416 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:46,416 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:46,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-25 07:49:46,417 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:46,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:46,417 INFO L82 PathProgramCache]: Analyzing trace with hash 887343038, now seen corresponding path program 17 times [2021-03-25 07:49:46,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:46,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749868869] [2021-03-25 07:49:46,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:46,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:46,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:46,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:46,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:46,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:46,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:46,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:46,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:46,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:46,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:46,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:46,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:46,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:46,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:46,456 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:46,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:46,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749868869] [2021-03-25 07:49:46,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:46,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:49:46,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764183903] [2021-03-25 07:49:46,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:49:46,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:46,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:49:46,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:49:46,460 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2021-03-25 07:49:46,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 1075 transitions, 31138 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:46,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:46,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2021-03-25 07:49:46,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:47,631 INFO L129 PetriNetUnfolder]: 867/1913 cut-off events. [2021-03-25 07:49:47,632 INFO L130 PetriNetUnfolder]: For 157122/157122 co-relation queries the response was YES. [2021-03-25 07:49:47,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28170 conditions, 1913 events. 867/1913 cut-off events. For 157122/157122 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 14800 event pairs, 6 based on Foata normal form. 1/1914 useless extension candidates. Maximal degree in co-relation 27356. Up to 1575 conditions per place. [2021-03-25 07:49:47,667 INFO L132 encePairwiseOnDemand]: 53/62 looper letters, 992 selfloop transitions, 95 changer transitions 0/1092 dead transitions. [2021-03-25 07:49:47,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 655 places, 1092 transitions, 34006 flow [2021-03-25 07:49:47,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:49:47,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:49:47,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:49:47,668 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5345622119815668 [2021-03-25 07:49:47,668 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:49:47,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:49:47,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:47,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:49:47,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:47,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 62.0) internal successors, (496), 8 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:47,669 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 62.0) internal successors, (496), 8 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:47,669 INFO L185 Difference]: Start difference. First operand has 649 places, 1075 transitions, 31138 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:49:47,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 655 places, 1092 transitions, 34006 flow [2021-03-25 07:49:48,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 654 places, 1092 transitions, 33743 flow, removed 122 selfloop flow, removed 1 redundant places. [2021-03-25 07:49:48,860 INFO L241 Difference]: Finished difference. Result has 656 places, 1087 transitions, 31808 flow [2021-03-25 07:49:48,860 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=30897, PETRI_DIFFERENCE_MINUEND_PLACES=648, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=987, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31808, PETRI_PLACES=656, PETRI_TRANSITIONS=1087} [2021-03-25 07:49:48,861 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 625 predicate places. [2021-03-25 07:49:48,861 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:48,861 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 656 places, 1087 transitions, 31808 flow [2021-03-25 07:49:48,861 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 656 places, 1087 transitions, 31808 flow [2021-03-25 07:49:48,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 656 places, 1087 transitions, 31808 flow [2021-03-25 07:49:49,391 INFO L129 PetriNetUnfolder]: 633/1518 cut-off events. [2021-03-25 07:49:49,392 INFO L130 PetriNetUnfolder]: For 119158/119776 co-relation queries the response was YES. [2021-03-25 07:49:49,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20625 conditions, 1518 events. 633/1518 cut-off events. For 119158/119776 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 12298 event pairs, 1 based on Foata normal form. 58/1575 useless extension candidates. Maximal degree in co-relation 20279. Up to 433 conditions per place. [2021-03-25 07:49:49,442 INFO L142 LiptonReduction]: Number of co-enabled transitions 1822 [2021-03-25 07:49:49,582 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:49,582 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:49,582 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 721 [2021-03-25 07:49:49,582 INFO L480 AbstractCegarLoop]: Abstraction has has 656 places, 1087 transitions, 31808 flow [2021-03-25 07:49:49,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:49,582 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:49,582 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:49,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-25 07:49:49,583 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:49,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:49,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1013407990, now seen corresponding path program 18 times [2021-03-25 07:49:49,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:49,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363416182] [2021-03-25 07:49:49,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:49,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:49,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:49,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:49,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:49,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:49,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:49,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:49,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:49,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:49,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:49:49,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:49,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:49,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:49,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:49,626 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:49,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:49,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:49,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363416182] [2021-03-25 07:49:49,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:49,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:49:49,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797071876] [2021-03-25 07:49:49,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:49:49,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:49,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:49:49,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:49:49,629 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2021-03-25 07:49:49,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 1087 transitions, 31808 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:49,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:49,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2021-03-25 07:49:49,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:50,849 INFO L129 PetriNetUnfolder]: 871/1927 cut-off events. [2021-03-25 07:49:50,849 INFO L130 PetriNetUnfolder]: For 158013/158013 co-relation queries the response was YES. [2021-03-25 07:49:50,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28569 conditions, 1927 events. 871/1927 cut-off events. For 158013/158013 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 15003 event pairs, 11 based on Foata normal form. 1/1928 useless extension candidates. Maximal degree in co-relation 27763. Up to 1517 conditions per place. [2021-03-25 07:49:50,890 INFO L132 encePairwiseOnDemand]: 53/62 looper letters, 950 selfloop transitions, 147 changer transitions 0/1102 dead transitions. [2021-03-25 07:49:50,890 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 1102 transitions, 34490 flow [2021-03-25 07:49:50,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:49:50,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:49:50,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:49:50,892 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5342741935483871 [2021-03-25 07:49:50,892 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:49:50,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:49:50,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:50,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:49:50,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:50,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 62.0) internal successors, (558), 9 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:50,893 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 62.0) internal successors, (558), 9 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:50,893 INFO L185 Difference]: Start difference. First operand has 656 places, 1087 transitions, 31808 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:49:50,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 663 places, 1102 transitions, 34490 flow [2021-03-25 07:49:52,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 663 places, 1102 transitions, 34142 flow, removed 174 selfloop flow, removed 0 redundant places. [2021-03-25 07:49:52,078 INFO L241 Difference]: Finished difference. Result has 666 places, 1095 transitions, 32347 flow [2021-03-25 07:49:52,079 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=31460, PETRI_DIFFERENCE_MINUEND_PLACES=656, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1087, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=32347, PETRI_PLACES=666, PETRI_TRANSITIONS=1095} [2021-03-25 07:49:52,079 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 635 predicate places. [2021-03-25 07:49:52,079 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:52,079 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 666 places, 1095 transitions, 32347 flow [2021-03-25 07:49:52,079 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 666 places, 1095 transitions, 32347 flow [2021-03-25 07:49:52,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 666 places, 1095 transitions, 32347 flow [2021-03-25 07:49:52,541 INFO L129 PetriNetUnfolder]: 637/1527 cut-off events. [2021-03-25 07:49:52,541 INFO L130 PetriNetUnfolder]: For 121623/122269 co-relation queries the response was YES. [2021-03-25 07:49:52,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21020 conditions, 1527 events. 637/1527 cut-off events. For 121623/122269 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 12319 event pairs, 1 based on Foata normal form. 52/1577 useless extension candidates. Maximal degree in co-relation 20669. Up to 436 conditions per place. [2021-03-25 07:49:52,593 INFO L142 LiptonReduction]: Number of co-enabled transitions 1832 [2021-03-25 07:49:52,729 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:52,730 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:52,730 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 651 [2021-03-25 07:49:52,730 INFO L480 AbstractCegarLoop]: Abstraction has has 666 places, 1095 transitions, 32347 flow [2021-03-25 07:49:52,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:52,730 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:52,730 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:52,730 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-25 07:49:52,730 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:52,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:52,731 INFO L82 PathProgramCache]: Analyzing trace with hash 29063154, now seen corresponding path program 19 times [2021-03-25 07:49:52,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:52,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160320311] [2021-03-25 07:49:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:52,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:52,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:52,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:52,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:52,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:52,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:52,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:52,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:52,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:52,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:52,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:52,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:52,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:52,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:52,780 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:52,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:52,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:52,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160320311] [2021-03-25 07:49:52,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:52,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:49:52,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920868743] [2021-03-25 07:49:52,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:49:52,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:52,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:49:52,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:49:52,784 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2021-03-25 07:49:52,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 1095 transitions, 32347 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:52,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:52,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2021-03-25 07:49:52,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:53,927 INFO L129 PetriNetUnfolder]: 876/1944 cut-off events. [2021-03-25 07:49:53,927 INFO L130 PetriNetUnfolder]: For 169091/169091 co-relation queries the response was YES. [2021-03-25 07:49:53,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29168 conditions, 1944 events. 876/1944 cut-off events. For 169091/169091 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 15165 event pairs, 11 based on Foata normal form. 1/1945 useless extension candidates. Maximal degree in co-relation 28328. Up to 1518 conditions per place. [2021-03-25 07:49:53,976 INFO L132 encePairwiseOnDemand]: 53/62 looper letters, 943 selfloop transitions, 159 changer transitions 4/1111 dead transitions. [2021-03-25 07:49:53,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 673 places, 1111 transitions, 35175 flow [2021-03-25 07:49:53,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:49:53,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:49:53,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:49:53,978 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.532258064516129 [2021-03-25 07:49:53,978 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:49:53,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:49:53,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:53,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:49:53,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:53,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 62.0) internal successors, (558), 9 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:53,979 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 62.0) internal successors, (558), 9 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:53,979 INFO L185 Difference]: Start difference. First operand has 666 places, 1095 transitions, 32347 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:49:53,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 673 places, 1111 transitions, 35175 flow [2021-03-25 07:49:55,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 671 places, 1111 transitions, 34911 flow, removed 111 selfloop flow, removed 2 redundant places. [2021-03-25 07:49:55,293 INFO L241 Difference]: Finished difference. Result has 673 places, 1101 transitions, 32742 flow [2021-03-25 07:49:55,294 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=32085, PETRI_DIFFERENCE_MINUEND_PLACES=664, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1095, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=32742, PETRI_PLACES=673, PETRI_TRANSITIONS=1101} [2021-03-25 07:49:55,295 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 642 predicate places. [2021-03-25 07:49:55,295 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:55,295 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 673 places, 1101 transitions, 32742 flow [2021-03-25 07:49:55,295 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 673 places, 1101 transitions, 32742 flow [2021-03-25 07:49:55,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 673 places, 1101 transitions, 32742 flow [2021-03-25 07:49:55,772 INFO L129 PetriNetUnfolder]: 639/1541 cut-off events. [2021-03-25 07:49:55,772 INFO L130 PetriNetUnfolder]: For 124851/125392 co-relation queries the response was YES. [2021-03-25 07:49:55,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21349 conditions, 1541 events. 639/1541 cut-off events. For 124851/125392 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 12579 event pairs, 2 based on Foata normal form. 48/1587 useless extension candidates. Maximal degree in co-relation 20994. Up to 441 conditions per place. [2021-03-25 07:49:55,824 INFO L142 LiptonReduction]: Number of co-enabled transitions 1828 [2021-03-25 07:49:55,940 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:55,940 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:55,940 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 645 [2021-03-25 07:49:55,941 INFO L480 AbstractCegarLoop]: Abstraction has has 673 places, 1101 transitions, 32742 flow [2021-03-25 07:49:55,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:55,941 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:55,941 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:55,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-25 07:49:55,941 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:55,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:55,941 INFO L82 PathProgramCache]: Analyzing trace with hash -283841650, now seen corresponding path program 20 times [2021-03-25 07:49:55,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:55,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036662975] [2021-03-25 07:49:55,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:55,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:55,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:55,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:55,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:55,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:55,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:55,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:55,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:55,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:55,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:49:55,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:55,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:55,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:55,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:55,985 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:55,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:55,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:55,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036662975] [2021-03-25 07:49:55,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:55,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:49:55,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493849547] [2021-03-25 07:49:55,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:49:55,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:55,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:49:55,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:49:55,988 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2021-03-25 07:49:55,988 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 673 places, 1101 transitions, 32742 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:55,988 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:55,988 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2021-03-25 07:49:55,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:49:57,146 INFO L129 PetriNetUnfolder]: 879/1973 cut-off events. [2021-03-25 07:49:57,146 INFO L130 PetriNetUnfolder]: For 173833/173833 co-relation queries the response was YES. [2021-03-25 07:49:57,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29705 conditions, 1973 events. 879/1973 cut-off events. For 173833/173833 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 15587 event pairs, 6 based on Foata normal form. 1/1974 useless extension candidates. Maximal degree in co-relation 28903. Up to 1574 conditions per place. [2021-03-25 07:49:57,192 INFO L132 encePairwiseOnDemand]: 53/62 looper letters, 988 selfloop transitions, 138 changer transitions 0/1131 dead transitions. [2021-03-25 07:49:57,193 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 680 places, 1131 transitions, 36122 flow [2021-03-25 07:49:57,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:49:57,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:49:57,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:49:57,193 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.530241935483871 [2021-03-25 07:49:57,193 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:49:57,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:49:57,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:49:57,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:49:57,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:57,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 62.0) internal successors, (558), 9 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:57,195 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 62.0) internal successors, (558), 9 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:57,195 INFO L185 Difference]: Start difference. First operand has 673 places, 1101 transitions, 32742 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:49:57,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 680 places, 1131 transitions, 36122 flow [2021-03-25 07:49:58,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 679 places, 1131 transitions, 35842 flow, removed 127 selfloop flow, removed 1 redundant places. [2021-03-25 07:49:58,525 INFO L241 Difference]: Finished difference. Result has 684 places, 1126 transitions, 34071 flow [2021-03-25 07:49:58,526 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=32462, PETRI_DIFFERENCE_MINUEND_PLACES=672, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=34071, PETRI_PLACES=684, PETRI_TRANSITIONS=1126} [2021-03-25 07:49:58,526 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 653 predicate places. [2021-03-25 07:49:58,526 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:49:58,526 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 684 places, 1126 transitions, 34071 flow [2021-03-25 07:49:58,526 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 684 places, 1126 transitions, 34071 flow [2021-03-25 07:49:58,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 684 places, 1126 transitions, 34071 flow [2021-03-25 07:49:59,000 INFO L129 PetriNetUnfolder]: 647/1586 cut-off events. [2021-03-25 07:49:59,000 INFO L130 PetriNetUnfolder]: For 128881/129420 co-relation queries the response was YES. [2021-03-25 07:49:59,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22309 conditions, 1586 events. 647/1586 cut-off events. For 128881/129420 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 13115 event pairs, 1 based on Foata normal form. 45/1630 useless extension candidates. Maximal degree in co-relation 21947. Up to 455 conditions per place. [2021-03-25 07:49:59,056 INFO L142 LiptonReduction]: Number of co-enabled transitions 1852 [2021-03-25 07:49:59,205 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:49:59,206 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:49:59,206 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 680 [2021-03-25 07:49:59,206 INFO L480 AbstractCegarLoop]: Abstraction has has 684 places, 1126 transitions, 34071 flow [2021-03-25 07:49:59,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:59,206 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:49:59,206 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:49:59,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-25 07:49:59,206 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:49:59,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:49:59,207 INFO L82 PathProgramCache]: Analyzing trace with hash -715639344, now seen corresponding path program 21 times [2021-03-25 07:49:59,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:49:59,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518015570] [2021-03-25 07:49:59,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:49:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:49:59,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:59,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:59,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:59,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:59,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:59,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:59,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:59,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:59,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:59,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:49:59,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:59,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:49:59,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:49:59,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:49:59,267 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:49:59,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:49:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:49:59,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518015570] [2021-03-25 07:49:59,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:49:59,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:49:59,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505737370] [2021-03-25 07:49:59,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:49:59,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:49:59,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:49:59,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:49:59,271 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 62 [2021-03-25 07:49:59,271 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 684 places, 1126 transitions, 34071 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:49:59,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:49:59,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 62 [2021-03-25 07:49:59,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:00,436 INFO L129 PetriNetUnfolder]: 886/2000 cut-off events. [2021-03-25 07:50:00,436 INFO L130 PetriNetUnfolder]: For 179330/179330 co-relation queries the response was YES. [2021-03-25 07:50:00,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30541 conditions, 2000 events. 886/2000 cut-off events. For 179330/179330 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 15950 event pairs, 8 based on Foata normal form. 1/2001 useless extension candidates. Maximal degree in co-relation 29718. Up to 1633 conditions per place. [2021-03-25 07:50:00,488 INFO L132 encePairwiseOnDemand]: 53/62 looper letters, 1043 selfloop transitions, 99 changer transitions 2/1149 dead transitions. [2021-03-25 07:50:00,488 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 691 places, 1149 transitions, 37258 flow [2021-03-25 07:50:00,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:50:00,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:50:00,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:50:00,489 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.532258064516129 [2021-03-25 07:50:00,489 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:50:00,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:50:00,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:00,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:50:00,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:00,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 62.0) internal successors, (558), 9 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:00,490 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 62.0) internal successors, (558), 9 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:00,490 INFO L185 Difference]: Start difference. First operand has 684 places, 1126 transitions, 34071 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:50:00,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 691 places, 1149 transitions, 37258 flow [2021-03-25 07:50:01,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 689 places, 1149 transitions, 36684 flow, removed 272 selfloop flow, removed 2 redundant places. [2021-03-25 07:50:01,911 INFO L241 Difference]: Finished difference. Result has 693 places, 1141 transitions, 34382 flow [2021-03-25 07:50:01,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=33652, PETRI_DIFFERENCE_MINUEND_PLACES=682, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1031, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=34382, PETRI_PLACES=693, PETRI_TRANSITIONS=1141} [2021-03-25 07:50:01,915 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 662 predicate places. [2021-03-25 07:50:01,915 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:01,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 693 places, 1141 transitions, 34382 flow [2021-03-25 07:50:01,916 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 693 places, 1141 transitions, 34382 flow [2021-03-25 07:50:01,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 693 places, 1141 transitions, 34382 flow [2021-03-25 07:50:02,507 INFO L129 PetriNetUnfolder]: 646/1572 cut-off events. [2021-03-25 07:50:02,507 INFO L130 PetriNetUnfolder]: For 118209/118654 co-relation queries the response was YES. [2021-03-25 07:50:02,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21878 conditions, 1572 events. 646/1572 cut-off events. For 118209/118654 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 12803 event pairs, 2 based on Foata normal form. 60/1631 useless extension candidates. Maximal degree in co-relation 21512. Up to 445 conditions per place. [2021-03-25 07:50:02,575 INFO L142 LiptonReduction]: Number of co-enabled transitions 1796 [2021-03-25 07:50:02,940 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 07:50:02,940 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:50:02,941 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1026 [2021-03-25 07:50:02,941 INFO L480 AbstractCegarLoop]: Abstraction has has 693 places, 1141 transitions, 34455 flow [2021-03-25 07:50:02,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:02,941 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:02,941 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:02,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-25 07:50:02,941 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:02,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:02,942 INFO L82 PathProgramCache]: Analyzing trace with hash -96846236, now seen corresponding path program 22 times [2021-03-25 07:50:02,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:02,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455517709] [2021-03-25 07:50:02,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:02,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:02,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:02,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:02,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:02,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:02,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:02,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:02,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:02,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:02,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:02,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:02,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:02,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:02,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:02,986 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:02,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:02,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455517709] [2021-03-25 07:50:02,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:02,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:50:02,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616263859] [2021-03-25 07:50:02,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:50:02,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:02,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:50:02,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:50:02,990 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 63 [2021-03-25 07:50:02,990 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 693 places, 1141 transitions, 34455 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:02,990 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:02,990 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 63 [2021-03-25 07:50:02,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:04,459 INFO L129 PetriNetUnfolder]: 881/1976 cut-off events. [2021-03-25 07:50:04,459 INFO L130 PetriNetUnfolder]: For 162505/162505 co-relation queries the response was YES. [2021-03-25 07:50:04,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29898 conditions, 1976 events. 881/1976 cut-off events. For 162505/162505 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 15624 event pairs, 10 based on Foata normal form. 1/1974 useless extension candidates. Maximal degree in co-relation 28700. Up to 1564 conditions per place. [2021-03-25 07:50:04,505 INFO L132 encePairwiseOnDemand]: 54/63 looper letters, 999 selfloop transitions, 157 changer transitions 2/1163 dead transitions. [2021-03-25 07:50:04,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 700 places, 1163 transitions, 37469 flow [2021-03-25 07:50:04,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:50:04,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:50:04,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 266 transitions. [2021-03-25 07:50:04,506 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2021-03-25 07:50:04,506 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 266 transitions. [2021-03-25 07:50:04,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 266 transitions. [2021-03-25 07:50:04,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:04,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 266 transitions. [2021-03-25 07:50:04,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.25) internal successors, (266), 8 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:04,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:04,507 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:04,507 INFO L185 Difference]: Start difference. First operand has 693 places, 1141 transitions, 34455 flow. Second operand 8 states and 266 transitions. [2021-03-25 07:50:04,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 700 places, 1163 transitions, 37469 flow [2021-03-25 07:50:05,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 698 places, 1163 transitions, 37046 flow, removed 202 selfloop flow, removed 2 redundant places. [2021-03-25 07:50:05,969 INFO L241 Difference]: Finished difference. Result has 703 places, 1154 transitions, 35203 flow [2021-03-25 07:50:05,970 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=34034, PETRI_DIFFERENCE_MINUEND_PLACES=691, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=986, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=35203, PETRI_PLACES=703, PETRI_TRANSITIONS=1154} [2021-03-25 07:50:05,970 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 672 predicate places. [2021-03-25 07:50:05,970 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:05,970 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 703 places, 1154 transitions, 35203 flow [2021-03-25 07:50:05,970 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 703 places, 1154 transitions, 35203 flow [2021-03-25 07:50:05,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 703 places, 1154 transitions, 35203 flow [2021-03-25 07:50:06,445 INFO L129 PetriNetUnfolder]: 650/1569 cut-off events. [2021-03-25 07:50:06,446 INFO L130 PetriNetUnfolder]: For 126123/126486 co-relation queries the response was YES. [2021-03-25 07:50:06,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22276 conditions, 1569 events. 650/1569 cut-off events. For 126123/126486 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 12747 event pairs, 2 based on Foata normal form. 57/1624 useless extension candidates. Maximal degree in co-relation 21905. Up to 450 conditions per place. [2021-03-25 07:50:06,504 INFO L142 LiptonReduction]: Number of co-enabled transitions 1788 [2021-03-25 07:50:06,664 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:50:06,664 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:50:06,664 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 694 [2021-03-25 07:50:06,664 INFO L480 AbstractCegarLoop]: Abstraction has has 703 places, 1154 transitions, 35203 flow [2021-03-25 07:50:06,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:06,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:06,665 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:06,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-25 07:50:06,665 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:06,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:06,665 INFO L82 PathProgramCache]: Analyzing trace with hash -481812102, now seen corresponding path program 23 times [2021-03-25 07:50:06,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:06,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182675208] [2021-03-25 07:50:06,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:06,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:06,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:06,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:06,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:06,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:06,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:06,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:06,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:06,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:06,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:50:06,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:06,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:06,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:06,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:06,710 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:06,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:06,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182675208] [2021-03-25 07:50:06,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:06,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:50:06,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206678967] [2021-03-25 07:50:06,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:50:06,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:06,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:50:06,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:50:06,714 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 63 [2021-03-25 07:50:06,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 1154 transitions, 35203 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:06,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:06,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 63 [2021-03-25 07:50:06,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:08,058 INFO L129 PetriNetUnfolder]: 883/1996 cut-off events. [2021-03-25 07:50:08,058 INFO L130 PetriNetUnfolder]: For 175714/175714 co-relation queries the response was YES. [2021-03-25 07:50:08,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30357 conditions, 1996 events. 883/1996 cut-off events. For 175714/175714 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 15881 event pairs, 9 based on Foata normal form. 1/1997 useless extension candidates. Maximal degree in co-relation 29095. Up to 1642 conditions per place. [2021-03-25 07:50:08,098 INFO L132 encePairwiseOnDemand]: 54/63 looper letters, 1081 selfloop transitions, 91 changer transitions 0/1177 dead transitions. [2021-03-25 07:50:08,098 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 710 places, 1177 transitions, 38422 flow [2021-03-25 07:50:08,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:50:08,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:50:08,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:50:08,099 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2021-03-25 07:50:08,099 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:50:08,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:50:08,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:08,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:50:08,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:08,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:08,100 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:08,100 INFO L185 Difference]: Start difference. First operand has 703 places, 1154 transitions, 35203 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:50:08,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 710 places, 1177 transitions, 38422 flow [2021-03-25 07:50:09,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 709 places, 1177 transitions, 38302 flow, removed 49 selfloop flow, removed 1 redundant places. [2021-03-25 07:50:09,547 INFO L241 Difference]: Finished difference. Result has 712 places, 1172 transitions, 36240 flow [2021-03-25 07:50:09,548 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=35083, PETRI_DIFFERENCE_MINUEND_PLACES=702, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1065, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=36240, PETRI_PLACES=712, PETRI_TRANSITIONS=1172} [2021-03-25 07:50:09,548 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 681 predicate places. [2021-03-25 07:50:09,548 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:09,548 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 712 places, 1172 transitions, 36240 flow [2021-03-25 07:50:09,548 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 712 places, 1172 transitions, 36240 flow [2021-03-25 07:50:09,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 712 places, 1172 transitions, 36240 flow [2021-03-25 07:50:10,037 INFO L129 PetriNetUnfolder]: 653/1620 cut-off events. [2021-03-25 07:50:10,037 INFO L130 PetriNetUnfolder]: For 129432/129713 co-relation queries the response was YES. [2021-03-25 07:50:10,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22994 conditions, 1620 events. 653/1620 cut-off events. For 129432/129713 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 13436 event pairs, 2 based on Foata normal form. 54/1673 useless extension candidates. Maximal degree in co-relation 22618. Up to 459 conditions per place. [2021-03-25 07:50:10,096 INFO L142 LiptonReduction]: Number of co-enabled transitions 1800 [2021-03-25 07:50:10,257 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:50:10,257 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:50:10,258 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 710 [2021-03-25 07:50:10,258 INFO L480 AbstractCegarLoop]: Abstraction has has 712 places, 1172 transitions, 36240 flow [2021-03-25 07:50:10,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:10,258 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:10,258 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:10,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-25 07:50:10,258 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:10,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:10,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1247235232, now seen corresponding path program 24 times [2021-03-25 07:50:10,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:10,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013871034] [2021-03-25 07:50:10,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:10,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:10,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:10,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:10,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:10,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:10,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:10,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:10,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:10,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:10,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:50:10,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:10,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:10,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:10,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:10,315 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:10,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:10,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013871034] [2021-03-25 07:50:10,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:10,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:50:10,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915904361] [2021-03-25 07:50:10,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:50:10,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:10,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:50:10,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:50:10,319 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 63 [2021-03-25 07:50:10,319 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 712 places, 1172 transitions, 36240 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:10,319 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:10,319 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 63 [2021-03-25 07:50:10,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:11,690 INFO L129 PetriNetUnfolder]: 887/2023 cut-off events. [2021-03-25 07:50:11,690 INFO L130 PetriNetUnfolder]: For 178557/178557 co-relation queries the response was YES. [2021-03-25 07:50:11,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31057 conditions, 2023 events. 887/2023 cut-off events. For 178557/178557 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 16233 event pairs, 8 based on Foata normal form. 1/2024 useless extension candidates. Maximal degree in co-relation 29791. Up to 1605 conditions per place. [2021-03-25 07:50:11,741 INFO L132 encePairwiseOnDemand]: 54/63 looper letters, 1037 selfloop transitions, 152 changer transitions 2/1196 dead transitions. [2021-03-25 07:50:11,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 719 places, 1196 transitions, 39398 flow [2021-03-25 07:50:11,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:50:11,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:50:11,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:50:11,742 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2021-03-25 07:50:11,742 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:50:11,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:50:11,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:11,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:50:11,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:11,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:11,743 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:11,743 INFO L185 Difference]: Start difference. First operand has 712 places, 1172 transitions, 36240 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:50:11,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 719 places, 1196 transitions, 39398 flow [2021-03-25 07:50:13,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 719 places, 1196 transitions, 39202 flow, removed 98 selfloop flow, removed 0 redundant places. [2021-03-25 07:50:13,543 INFO L241 Difference]: Finished difference. Result has 723 places, 1189 transitions, 37205 flow [2021-03-25 07:50:13,544 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=36044, PETRI_DIFFERENCE_MINUEND_PLACES=712, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1022, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37205, PETRI_PLACES=723, PETRI_TRANSITIONS=1189} [2021-03-25 07:50:13,544 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 692 predicate places. [2021-03-25 07:50:13,544 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:13,544 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 723 places, 1189 transitions, 37205 flow [2021-03-25 07:50:13,545 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 723 places, 1189 transitions, 37205 flow [2021-03-25 07:50:13,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 723 places, 1189 transitions, 37205 flow [2021-03-25 07:50:14,149 INFO L129 PetriNetUnfolder]: 654/1597 cut-off events. [2021-03-25 07:50:14,149 INFO L130 PetriNetUnfolder]: For 136395/136710 co-relation queries the response was YES. [2021-03-25 07:50:14,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23412 conditions, 1597 events. 654/1597 cut-off events. For 136395/136710 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 13125 event pairs, 1 based on Foata normal form. 47/1642 useless extension candidates. Maximal degree in co-relation 23030. Up to 466 conditions per place. [2021-03-25 07:50:14,227 INFO L142 LiptonReduction]: Number of co-enabled transitions 1768 [2021-03-25 07:50:14,669 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 07:50:14,670 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:50:14,670 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1126 [2021-03-25 07:50:14,670 INFO L480 AbstractCegarLoop]: Abstraction has has 723 places, 1189 transitions, 37270 flow [2021-03-25 07:50:14,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:14,670 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:14,670 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:14,670 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-25 07:50:14,670 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:14,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:14,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1554897482, now seen corresponding path program 25 times [2021-03-25 07:50:14,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:14,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107932119] [2021-03-25 07:50:14,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:14,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:14,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:14,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:14,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:14,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:14,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:14,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:14,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:14,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:14,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:50:14,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:14,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:14,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:14,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:14,719 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:14,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:14,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:14,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107932119] [2021-03-25 07:50:14,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:14,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:50:14,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455865704] [2021-03-25 07:50:14,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:50:14,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:14,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:50:14,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:50:14,723 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 64 [2021-03-25 07:50:14,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 723 places, 1189 transitions, 37270 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:14,724 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:14,724 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 64 [2021-03-25 07:50:14,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:16,306 INFO L129 PetriNetUnfolder]: 882/2029 cut-off events. [2021-03-25 07:50:16,306 INFO L130 PetriNetUnfolder]: For 185928/185928 co-relation queries the response was YES. [2021-03-25 07:50:16,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31583 conditions, 2029 events. 882/2029 cut-off events. For 185928/185928 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 16373 event pairs, 8 based on Foata normal form. 1/2028 useless extension candidates. Maximal degree in co-relation 30312. Up to 1595 conditions per place. [2021-03-25 07:50:16,365 INFO L132 encePairwiseOnDemand]: 55/64 looper letters, 1035 selfloop transitions, 166 changer transitions 4/1210 dead transitions. [2021-03-25 07:50:16,365 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 730 places, 1210 transitions, 40652 flow [2021-03-25 07:50:16,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:50:16,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:50:16,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:50:16,369 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.515625 [2021-03-25 07:50:16,369 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:50:16,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:50:16,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:16,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:50:16,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:16,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 64.0) internal successors, (576), 9 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:16,370 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 64.0) internal successors, (576), 9 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:16,370 INFO L185 Difference]: Start difference. First operand has 723 places, 1189 transitions, 37270 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:50:16,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 730 places, 1210 transitions, 40652 flow [2021-03-25 07:50:18,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 729 places, 1210 transitions, 40258 flow, removed 168 selfloop flow, removed 1 redundant places. [2021-03-25 07:50:18,414 INFO L241 Difference]: Finished difference. Result has 732 places, 1202 transitions, 37776 flow [2021-03-25 07:50:18,415 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=36974, PETRI_DIFFERENCE_MINUEND_PLACES=722, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1025, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37776, PETRI_PLACES=732, PETRI_TRANSITIONS=1202} [2021-03-25 07:50:18,415 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 701 predicate places. [2021-03-25 07:50:18,415 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:18,415 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 732 places, 1202 transitions, 37776 flow [2021-03-25 07:50:18,416 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 732 places, 1202 transitions, 37776 flow [2021-03-25 07:50:18,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 732 places, 1202 transitions, 37776 flow [2021-03-25 07:50:18,905 INFO L129 PetriNetUnfolder]: 649/1473 cut-off events. [2021-03-25 07:50:18,905 INFO L130 PetriNetUnfolder]: For 116259/116583 co-relation queries the response was YES. [2021-03-25 07:50:18,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21762 conditions, 1473 events. 649/1473 cut-off events. For 116259/116583 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 11489 event pairs, 3 based on Foata normal form. 57/1529 useless extension candidates. Maximal degree in co-relation 21376. Up to 452 conditions per place. [2021-03-25 07:50:18,961 INFO L142 LiptonReduction]: Number of co-enabled transitions 1520 [2021-03-25 07:50:19,349 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 07:50:19,349 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:50:19,350 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 935 [2021-03-25 07:50:19,350 INFO L480 AbstractCegarLoop]: Abstraction has has 732 places, 1202 transitions, 37875 flow [2021-03-25 07:50:19,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:19,350 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:19,350 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:19,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-25 07:50:19,350 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:19,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:19,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1898267315, now seen corresponding path program 1 times [2021-03-25 07:50:19,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:19,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605319084] [2021-03-25 07:50:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:19,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:19,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:19,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:19,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:19,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:19,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:19,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:19,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:19,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:19,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:19,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:19,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:19,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:19,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:19,383 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:19,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:19,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605319084] [2021-03-25 07:50:19,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:19,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:50:19,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904270320] [2021-03-25 07:50:19,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:50:19,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:19,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:50:19,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:50:19,387 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 65 [2021-03-25 07:50:19,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 732 places, 1202 transitions, 37875 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:19,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:19,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 65 [2021-03-25 07:50:19,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:20,655 INFO L129 PetriNetUnfolder]: 860/1833 cut-off events. [2021-03-25 07:50:20,655 INFO L130 PetriNetUnfolder]: For 154842/154880 co-relation queries the response was YES. [2021-03-25 07:50:20,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28564 conditions, 1833 events. 860/1833 cut-off events. For 154842/154880 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 13832 event pairs, 9 based on Foata normal form. 17/1847 useless extension candidates. Maximal degree in co-relation 28034. Up to 1560 conditions per place. [2021-03-25 07:50:20,708 INFO L132 encePairwiseOnDemand]: 56/65 looper letters, 1141 selfloop transitions, 57 changer transitions 6/1209 dead transitions. [2021-03-25 07:50:20,709 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 737 places, 1209 transitions, 40482 flow [2021-03-25 07:50:20,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:50:20,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:50:20,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:50:20,709 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.517948717948718 [2021-03-25 07:50:20,709 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:50:20,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:50:20,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:20,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:50:20,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:20,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:20,710 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:20,710 INFO L185 Difference]: Start difference. First operand has 732 places, 1202 transitions, 37875 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:50:20,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 737 places, 1209 transitions, 40482 flow [2021-03-25 07:50:22,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 732 places, 1209 transitions, 39791 flow, removed 184 selfloop flow, removed 5 redundant places. [2021-03-25 07:50:22,346 INFO L241 Difference]: Finished difference. Result has 735 places, 1199 transitions, 37231 flow [2021-03-25 07:50:22,347 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=37184, PETRI_DIFFERENCE_MINUEND_PLACES=727, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=37231, PETRI_PLACES=735, PETRI_TRANSITIONS=1199} [2021-03-25 07:50:22,347 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 704 predicate places. [2021-03-25 07:50:22,347 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:22,347 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 735 places, 1199 transitions, 37231 flow [2021-03-25 07:50:22,347 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 735 places, 1199 transitions, 37231 flow [2021-03-25 07:50:22,358 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 735 places, 1199 transitions, 37231 flow [2021-03-25 07:50:22,846 INFO L129 PetriNetUnfolder]: 647/1462 cut-off events. [2021-03-25 07:50:22,847 INFO L130 PetriNetUnfolder]: For 118586/118864 co-relation queries the response was YES. [2021-03-25 07:50:22,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21444 conditions, 1462 events. 647/1462 cut-off events. For 118586/118864 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 11340 event pairs, 3 based on Foata normal form. 47/1508 useless extension candidates. Maximal degree in co-relation 21058. Up to 451 conditions per place. [2021-03-25 07:50:22,907 INFO L142 LiptonReduction]: Number of co-enabled transitions 1512 [2021-03-25 07:50:23,078 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:50:23,078 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:50:23,078 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 731 [2021-03-25 07:50:23,079 INFO L480 AbstractCegarLoop]: Abstraction has has 735 places, 1199 transitions, 37231 flow [2021-03-25 07:50:23,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:23,079 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:23,079 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:23,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-25 07:50:23,079 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:23,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:23,079 INFO L82 PathProgramCache]: Analyzing trace with hash -2068214247, now seen corresponding path program 1 times [2021-03-25 07:50:23,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:23,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896870894] [2021-03-25 07:50:23,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:23,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:23,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:23,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:23,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:23,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:23,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:23,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:23,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:23,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:23,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:23,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:23,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:23,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:23,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:23,131 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:23,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:23,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:23,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896870894] [2021-03-25 07:50:23,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:23,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:50:23,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486930247] [2021-03-25 07:50:23,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:50:23,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:23,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:50:23,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:50:23,135 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 65 [2021-03-25 07:50:23,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 735 places, 1199 transitions, 37231 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:23,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:23,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 65 [2021-03-25 07:50:23,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:24,140 INFO L129 PetriNetUnfolder]: 661/1460 cut-off events. [2021-03-25 07:50:24,140 INFO L130 PetriNetUnfolder]: For 141243/141361 co-relation queries the response was YES. [2021-03-25 07:50:24,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23694 conditions, 1460 events. 661/1460 cut-off events. For 141243/141361 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 10915 event pairs, 3 based on Foata normal form. 68/1528 useless extension candidates. Maximal degree in co-relation 23167. Up to 1209 conditions per place. [2021-03-25 07:50:24,176 INFO L132 encePairwiseOnDemand]: 56/65 looper letters, 1103 selfloop transitions, 95 changer transitions 2/1205 dead transitions. [2021-03-25 07:50:24,176 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 741 places, 1205 transitions, 39899 flow [2021-03-25 07:50:24,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:50:24,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:50:24,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:50:24,177 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5098901098901099 [2021-03-25 07:50:24,177 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:50:24,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:50:24,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:24,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:50:24,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:24,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 65.0) internal successors, (520), 8 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:24,178 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 65.0) internal successors, (520), 8 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:24,178 INFO L185 Difference]: Start difference. First operand has 735 places, 1199 transitions, 37231 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:50:24,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 741 places, 1205 transitions, 39899 flow [2021-03-25 07:50:25,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 736 places, 1205 transitions, 39786 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-25 07:50:25,528 INFO L241 Difference]: Finished difference. Result has 739 places, 1200 transitions, 37499 flow [2021-03-25 07:50:25,529 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=37118, PETRI_DIFFERENCE_MINUEND_PLACES=730, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=37499, PETRI_PLACES=739, PETRI_TRANSITIONS=1200} [2021-03-25 07:50:25,529 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 708 predicate places. [2021-03-25 07:50:25,529 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:25,529 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 739 places, 1200 transitions, 37499 flow [2021-03-25 07:50:25,529 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 739 places, 1200 transitions, 37499 flow [2021-03-25 07:50:25,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 739 places, 1200 transitions, 37499 flow [2021-03-25 07:50:25,997 INFO L129 PetriNetUnfolder]: 647/1469 cut-off events. [2021-03-25 07:50:25,997 INFO L130 PetriNetUnfolder]: For 123507/123846 co-relation queries the response was YES. [2021-03-25 07:50:26,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21586 conditions, 1469 events. 647/1469 cut-off events. For 123507/123846 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 11451 event pairs, 1 based on Foata normal form. 56/1523 useless extension candidates. Maximal degree in co-relation 21199. Up to 451 conditions per place. [2021-03-25 07:50:26,055 INFO L142 LiptonReduction]: Number of co-enabled transitions 1512 [2021-03-25 07:50:26,227 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:50:26,227 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:50:26,228 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 698 [2021-03-25 07:50:26,228 INFO L480 AbstractCegarLoop]: Abstraction has has 739 places, 1200 transitions, 37499 flow [2021-03-25 07:50:26,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:26,228 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:26,228 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:26,228 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-25 07:50:26,228 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:26,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:26,228 INFO L82 PathProgramCache]: Analyzing trace with hash 505770108, now seen corresponding path program 1 times [2021-03-25 07:50:26,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:26,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936110336] [2021-03-25 07:50:26,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:26,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:26,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:26,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:26,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:26,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:26,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:26,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:26,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:26,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:26,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:26,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:26,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:26,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:26,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:26,263 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:26,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:26,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:26,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936110336] [2021-03-25 07:50:26,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:26,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:50:26,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190139235] [2021-03-25 07:50:26,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:50:26,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:26,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:50:26,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:50:26,267 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 65 [2021-03-25 07:50:26,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 739 places, 1200 transitions, 37499 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:26,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:26,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 65 [2021-03-25 07:50:26,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:27,468 INFO L129 PetriNetUnfolder]: 870/1850 cut-off events. [2021-03-25 07:50:27,469 INFO L130 PetriNetUnfolder]: For 170978/170987 co-relation queries the response was YES. [2021-03-25 07:50:27,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28996 conditions, 1850 events. 870/1850 cut-off events. For 170978/170987 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 13884 event pairs, 11 based on Foata normal form. 10/1860 useless extension candidates. Maximal degree in co-relation 28606. Up to 1593 conditions per place. [2021-03-25 07:50:27,514 INFO L132 encePairwiseOnDemand]: 56/65 looper letters, 1138 selfloop transitions, 60 changer transitions 5/1208 dead transitions. [2021-03-25 07:50:27,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 744 places, 1208 transitions, 40265 flow [2021-03-25 07:50:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:50:27,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:50:27,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:50:27,519 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.517948717948718 [2021-03-25 07:50:27,519 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:50:27,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:50:27,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:27,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:50:27,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:27,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:27,520 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:27,520 INFO L185 Difference]: Start difference. First operand has 739 places, 1200 transitions, 37499 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:50:27,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 744 places, 1208 transitions, 40265 flow [2021-03-25 07:50:29,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 742 places, 1208 transitions, 40087 flow, removed 39 selfloop flow, removed 2 redundant places. [2021-03-25 07:50:29,107 INFO L241 Difference]: Finished difference. Result has 746 places, 1199 transitions, 37514 flow [2021-03-25 07:50:29,108 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=37321, PETRI_DIFFERENCE_MINUEND_PLACES=737, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=37514, PETRI_PLACES=746, PETRI_TRANSITIONS=1199} [2021-03-25 07:50:29,108 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 715 predicate places. [2021-03-25 07:50:29,108 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:29,108 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 746 places, 1199 transitions, 37514 flow [2021-03-25 07:50:29,108 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 746 places, 1199 transitions, 37514 flow [2021-03-25 07:50:29,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 746 places, 1199 transitions, 37514 flow [2021-03-25 07:50:29,598 INFO L129 PetriNetUnfolder]: 646/1462 cut-off events. [2021-03-25 07:50:29,598 INFO L130 PetriNetUnfolder]: For 123075/123292 co-relation queries the response was YES. [2021-03-25 07:50:29,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21605 conditions, 1462 events. 646/1462 cut-off events. For 123075/123292 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 11416 event pairs, 2 based on Foata normal form. 45/1506 useless extension candidates. Maximal degree in co-relation 21214. Up to 450 conditions per place. [2021-03-25 07:50:29,654 INFO L142 LiptonReduction]: Number of co-enabled transitions 1516 [2021-03-25 07:50:29,827 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:50:29,827 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:50:29,827 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 719 [2021-03-25 07:50:29,827 INFO L480 AbstractCegarLoop]: Abstraction has has 746 places, 1199 transitions, 37514 flow [2021-03-25 07:50:29,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:29,827 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:29,827 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:29,827 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-25 07:50:29,828 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:29,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:29,828 INFO L82 PathProgramCache]: Analyzing trace with hash -843940933, now seen corresponding path program 2 times [2021-03-25 07:50:29,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:29,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906354489] [2021-03-25 07:50:29,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:29,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:29,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:29,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:29,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:29,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:29,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:29,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:29,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:29,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:29,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:50:29,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:29,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:29,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:29,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:29,871 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:29,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:29,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:29,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906354489] [2021-03-25 07:50:29,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:29,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:50:29,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471582782] [2021-03-25 07:50:29,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:50:29,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:29,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:50:29,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:50:29,874 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 65 [2021-03-25 07:50:29,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 746 places, 1199 transitions, 37514 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:29,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:29,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 65 [2021-03-25 07:50:29,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:30,898 INFO L129 PetriNetUnfolder]: 662/1471 cut-off events. [2021-03-25 07:50:30,898 INFO L130 PetriNetUnfolder]: For 147221/147339 co-relation queries the response was YES. [2021-03-25 07:50:30,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23999 conditions, 1471 events. 662/1471 cut-off events. For 147221/147339 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 11061 event pairs, 3 based on Foata normal form. 50/1521 useless extension candidates. Maximal degree in co-relation 23467. Up to 1237 conditions per place. [2021-03-25 07:50:30,937 INFO L132 encePairwiseOnDemand]: 56/65 looper letters, 1154 selfloop transitions, 47 changer transitions 2/1208 dead transitions. [2021-03-25 07:50:30,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 751 places, 1208 transitions, 40450 flow [2021-03-25 07:50:30,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:50:30,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:50:30,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2021-03-25 07:50:30,938 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5153846153846153 [2021-03-25 07:50:30,938 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 201 transitions. [2021-03-25 07:50:30,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 201 transitions. [2021-03-25 07:50:30,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:30,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 201 transitions. [2021-03-25 07:50:30,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:30,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:30,939 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:30,939 INFO L185 Difference]: Start difference. First operand has 746 places, 1199 transitions, 37514 flow. Second operand 6 states and 201 transitions. [2021-03-25 07:50:30,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 751 places, 1208 transitions, 40450 flow [2021-03-25 07:50:32,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 747 places, 1208 transitions, 40277 flow, removed 34 selfloop flow, removed 4 redundant places. [2021-03-25 07:50:32,346 INFO L241 Difference]: Finished difference. Result has 750 places, 1203 transitions, 37828 flow [2021-03-25 07:50:32,347 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=37341, PETRI_DIFFERENCE_MINUEND_PLACES=742, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=37828, PETRI_PLACES=750, PETRI_TRANSITIONS=1203} [2021-03-25 07:50:32,347 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 719 predicate places. [2021-03-25 07:50:32,347 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:32,347 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 750 places, 1203 transitions, 37828 flow [2021-03-25 07:50:32,347 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 750 places, 1203 transitions, 37828 flow [2021-03-25 07:50:32,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 750 places, 1203 transitions, 37828 flow [2021-03-25 07:50:32,899 INFO L129 PetriNetUnfolder]: 648/1453 cut-off events. [2021-03-25 07:50:32,899 INFO L130 PetriNetUnfolder]: For 129372/129593 co-relation queries the response was YES. [2021-03-25 07:50:32,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21779 conditions, 1453 events. 648/1453 cut-off events. For 129372/129593 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 11216 event pairs, 0 based on Foata normal form. 45/1495 useless extension candidates. Maximal degree in co-relation 21386. Up to 450 conditions per place. [2021-03-25 07:50:32,945 INFO L142 LiptonReduction]: Number of co-enabled transitions 1518 [2021-03-25 07:50:33,097 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:50:33,097 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:50:33,098 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 751 [2021-03-25 07:50:33,098 INFO L480 AbstractCegarLoop]: Abstraction has has 750 places, 1203 transitions, 37828 flow [2021-03-25 07:50:33,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:33,098 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:33,098 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:33,098 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-25 07:50:33,098 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:33,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:33,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1281450991, now seen corresponding path program 3 times [2021-03-25 07:50:33,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:33,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720053138] [2021-03-25 07:50:33,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:33,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:33,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:33,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:33,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:33,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:33,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:33,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:33,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:33,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:33,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:50:33,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:33,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:33,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:33,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:33,157 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:33,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:33,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:33,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720053138] [2021-03-25 07:50:33,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:33,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:50:33,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260041101] [2021-03-25 07:50:33,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:50:33,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:33,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:50:33,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:50:33,160 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 65 [2021-03-25 07:50:33,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 750 places, 1203 transitions, 37828 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:33,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:33,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 65 [2021-03-25 07:50:33,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:34,288 INFO L129 PetriNetUnfolder]: 662/1483 cut-off events. [2021-03-25 07:50:34,288 INFO L130 PetriNetUnfolder]: For 150534/150652 co-relation queries the response was YES. [2021-03-25 07:50:34,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24133 conditions, 1483 events. 662/1483 cut-off events. For 150534/150652 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 11229 event pairs, 6 based on Foata normal form. 68/1551 useless extension candidates. Maximal degree in co-relation 23599. Up to 1162 conditions per place. [2021-03-25 07:50:34,341 INFO L132 encePairwiseOnDemand]: 56/65 looper letters, 1058 selfloop transitions, 141 changer transitions 9/1213 dead transitions. [2021-03-25 07:50:34,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 757 places, 1213 transitions, 40638 flow [2021-03-25 07:50:34,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:50:34,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:50:34,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:50:34,342 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5076923076923077 [2021-03-25 07:50:34,342 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:50:34,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:50:34,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:34,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:50:34,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:34,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 65.0) internal successors, (585), 9 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:34,343 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 65.0) internal successors, (585), 9 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:34,343 INFO L185 Difference]: Start difference. First operand has 750 places, 1203 transitions, 37828 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:50:34,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 757 places, 1213 transitions, 40638 flow [2021-03-25 07:50:35,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 756 places, 1213 transitions, 40323 flow, removed 147 selfloop flow, removed 1 redundant places. [2021-03-25 07:50:35,958 INFO L241 Difference]: Finished difference. Result has 760 places, 1200 transitions, 37810 flow [2021-03-25 07:50:35,959 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=37513, PETRI_DIFFERENCE_MINUEND_PLACES=749, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1062, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37810, PETRI_PLACES=760, PETRI_TRANSITIONS=1200} [2021-03-25 07:50:35,959 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 729 predicate places. [2021-03-25 07:50:35,959 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:35,960 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 760 places, 1200 transitions, 37810 flow [2021-03-25 07:50:35,960 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 760 places, 1200 transitions, 37810 flow [2021-03-25 07:50:35,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 760 places, 1200 transitions, 37810 flow [2021-03-25 07:50:36,451 INFO L129 PetriNetUnfolder]: 645/1449 cut-off events. [2021-03-25 07:50:36,452 INFO L130 PetriNetUnfolder]: For 129874/130006 co-relation queries the response was YES. [2021-03-25 07:50:36,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21824 conditions, 1449 events. 645/1449 cut-off events. For 129874/130006 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 11263 event pairs, 0 based on Foata normal form. 16/1460 useless extension candidates. Maximal degree in co-relation 21426. Up to 450 conditions per place. [2021-03-25 07:50:36,509 INFO L142 LiptonReduction]: Number of co-enabled transitions 1530 [2021-03-25 07:50:36,677 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:50:36,677 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:50:36,677 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 718 [2021-03-25 07:50:36,678 INFO L480 AbstractCegarLoop]: Abstraction has has 760 places, 1200 transitions, 37810 flow [2021-03-25 07:50:36,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:36,678 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:36,678 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:36,678 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-25 07:50:36,678 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:36,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:36,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1284468971, now seen corresponding path program 4 times [2021-03-25 07:50:36,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:36,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595113168] [2021-03-25 07:50:36,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:36,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:36,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:36,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:36,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:36,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:36,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:36,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:36,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:36,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:36,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:50:36,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:36,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:36,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:36,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:36,726 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:36,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:36,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:36,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595113168] [2021-03-25 07:50:36,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:36,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:50:36,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659631787] [2021-03-25 07:50:36,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:50:36,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:36,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:50:36,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:50:36,729 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 65 [2021-03-25 07:50:36,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 760 places, 1200 transitions, 37810 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:36,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:36,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 65 [2021-03-25 07:50:36,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:37,758 INFO L129 PetriNetUnfolder]: 659/1469 cut-off events. [2021-03-25 07:50:37,758 INFO L130 PetriNetUnfolder]: For 150554/150672 co-relation queries the response was YES. [2021-03-25 07:50:37,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24128 conditions, 1469 events. 659/1469 cut-off events. For 150554/150672 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 11075 event pairs, 4 based on Foata normal form. 68/1537 useless extension candidates. Maximal degree in co-relation 23588. Up to 1206 conditions per place. [2021-03-25 07:50:37,802 INFO L132 encePairwiseOnDemand]: 56/65 looper letters, 1111 selfloop transitions, 89 changer transitions 2/1207 dead transitions. [2021-03-25 07:50:37,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 767 places, 1207 transitions, 40502 flow [2021-03-25 07:50:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:50:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:50:37,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:50:37,805 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5076923076923077 [2021-03-25 07:50:37,805 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:50:37,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:50:37,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:37,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:50:37,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:37,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 65.0) internal successors, (585), 9 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:37,806 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 65.0) internal successors, (585), 9 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:37,806 INFO L185 Difference]: Start difference. First operand has 760 places, 1200 transitions, 37810 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:50:37,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 767 places, 1207 transitions, 40502 flow [2021-03-25 07:50:39,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 760 places, 1207 transitions, 40279 flow, removed 1 selfloop flow, removed 7 redundant places. [2021-03-25 07:50:39,486 INFO L241 Difference]: Finished difference. Result has 763 places, 1201 transitions, 37934 flow [2021-03-25 07:50:39,487 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=37587, PETRI_DIFFERENCE_MINUEND_PLACES=753, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37934, PETRI_PLACES=763, PETRI_TRANSITIONS=1201} [2021-03-25 07:50:39,487 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 732 predicate places. [2021-03-25 07:50:39,487 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:39,487 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 763 places, 1201 transitions, 37934 flow [2021-03-25 07:50:39,487 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 763 places, 1201 transitions, 37934 flow [2021-03-25 07:50:39,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 763 places, 1201 transitions, 37934 flow [2021-03-25 07:50:40,001 INFO L129 PetriNetUnfolder]: 645/1459 cut-off events. [2021-03-25 07:50:40,001 INFO L130 PetriNetUnfolder]: For 127515/127817 co-relation queries the response was YES. [2021-03-25 07:50:40,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21930 conditions, 1459 events. 645/1459 cut-off events. For 127515/127817 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 11373 event pairs, 5 based on Foata normal form. 46/1504 useless extension candidates. Maximal degree in co-relation 21529. Up to 450 conditions per place. [2021-03-25 07:50:40,061 INFO L142 LiptonReduction]: Number of co-enabled transitions 1530 [2021-03-25 07:50:40,243 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:50:40,243 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:50:40,243 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 756 [2021-03-25 07:50:40,243 INFO L480 AbstractCegarLoop]: Abstraction has has 763 places, 1201 transitions, 37934 flow [2021-03-25 07:50:40,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:40,244 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:40,244 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:40,244 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-25 07:50:40,244 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:40,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:40,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1292749265, now seen corresponding path program 5 times [2021-03-25 07:50:40,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:40,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161270360] [2021-03-25 07:50:40,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:40,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:40,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:40,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:40,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:40,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:40,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:40,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:40,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:40,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:40,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:50:40,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:40,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:40,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:40,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:40,296 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:40,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:40,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:40,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161270360] [2021-03-25 07:50:40,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:40,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:50:40,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415997453] [2021-03-25 07:50:40,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:50:40,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:40,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:50:40,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:50:40,299 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 65 [2021-03-25 07:50:40,300 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 763 places, 1201 transitions, 37934 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:40,300 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:40,300 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 65 [2021-03-25 07:50:40,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:41,381 INFO L129 PetriNetUnfolder]: 658/1467 cut-off events. [2021-03-25 07:50:41,381 INFO L130 PetriNetUnfolder]: For 151588/151688 co-relation queries the response was YES. [2021-03-25 07:50:41,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24145 conditions, 1467 events. 658/1467 cut-off events. For 151588/151688 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 11002 event pairs, 2 based on Foata normal form. 41/1508 useless extension candidates. Maximal degree in co-relation 23600. Up to 1181 conditions per place. [2021-03-25 07:50:41,424 INFO L132 encePairwiseOnDemand]: 56/65 looper letters, 1052 selfloop transitions, 142 changer transitions 6/1205 dead transitions. [2021-03-25 07:50:41,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 770 places, 1205 transitions, 40448 flow [2021-03-25 07:50:41,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:50:41,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:50:41,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:50:41,425 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5057692307692307 [2021-03-25 07:50:41,425 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:50:41,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:50:41,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:41,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:50:41,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:41,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 65.0) internal successors, (585), 9 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:41,426 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 65.0) internal successors, (585), 9 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:41,426 INFO L185 Difference]: Start difference. First operand has 763 places, 1201 transitions, 37934 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:50:41,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 770 places, 1205 transitions, 40448 flow [2021-03-25 07:50:43,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 764 places, 1205 transitions, 40225 flow, removed 28 selfloop flow, removed 6 redundant places. [2021-03-25 07:50:43,028 INFO L241 Difference]: Finished difference. Result has 766 places, 1196 transitions, 37985 flow [2021-03-25 07:50:43,028 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=37711, PETRI_DIFFERENCE_MINUEND_PLACES=757, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1059, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37985, PETRI_PLACES=766, PETRI_TRANSITIONS=1196} [2021-03-25 07:50:43,029 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 735 predicate places. [2021-03-25 07:50:43,029 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:43,029 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 766 places, 1196 transitions, 37985 flow [2021-03-25 07:50:43,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 766 places, 1196 transitions, 37985 flow [2021-03-25 07:50:43,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 766 places, 1196 transitions, 37985 flow [2021-03-25 07:50:43,532 INFO L129 PetriNetUnfolder]: 643/1455 cut-off events. [2021-03-25 07:50:43,532 INFO L130 PetriNetUnfolder]: For 131633/131915 co-relation queries the response was YES. [2021-03-25 07:50:43,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21963 conditions, 1455 events. 643/1455 cut-off events. For 131633/131915 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 11356 event pairs, 2 based on Foata normal form. 58/1511 useless extension candidates. Maximal degree in co-relation 21561. Up to 450 conditions per place. [2021-03-25 07:50:43,590 INFO L142 LiptonReduction]: Number of co-enabled transitions 1528 [2021-03-25 07:50:43,999 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 07:50:44,000 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:50:44,000 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 971 [2021-03-25 07:50:44,000 INFO L480 AbstractCegarLoop]: Abstraction has has 766 places, 1196 transitions, 38015 flow [2021-03-25 07:50:44,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:44,000 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:44,000 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:44,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-25 07:50:44,000 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:44,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:44,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1521093329, now seen corresponding path program 6 times [2021-03-25 07:50:44,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:44,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075636238] [2021-03-25 07:50:44,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:44,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:44,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:44,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:44,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:44,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:44,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:44,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:44,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:44,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:44,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:44,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:44,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:44,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:44,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:44,058 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:44,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:44,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:44,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075636238] [2021-03-25 07:50:44,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:44,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:50:44,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253114943] [2021-03-25 07:50:44,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:50:44,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:44,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:50:44,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:50:44,061 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:50:44,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 766 places, 1196 transitions, 38015 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:44,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:44,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:50:44,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:45,138 INFO L129 PetriNetUnfolder]: 656/1458 cut-off events. [2021-03-25 07:50:45,139 INFO L130 PetriNetUnfolder]: For 152031/152131 co-relation queries the response was YES. [2021-03-25 07:50:45,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24203 conditions, 1458 events. 656/1458 cut-off events. For 152031/152131 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 10926 event pairs, 2 based on Foata normal form. 41/1498 useless extension candidates. Maximal degree in co-relation 23656. Up to 1156 conditions per place. [2021-03-25 07:50:45,177 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1035 selfloop transitions, 155 changer transitions 7/1202 dead transitions. [2021-03-25 07:50:45,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 773 places, 1202 transitions, 40553 flow [2021-03-25 07:50:45,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:50:45,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:50:45,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:50:45,178 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5018939393939394 [2021-03-25 07:50:45,179 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:50:45,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:50:45,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:45,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:50:45,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:45,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:45,179 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:45,179 INFO L185 Difference]: Start difference. First operand has 766 places, 1196 transitions, 38015 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:50:45,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 773 places, 1202 transitions, 40553 flow [2021-03-25 07:50:46,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 761 places, 1202 transitions, 40116 flow, removed 15 selfloop flow, removed 12 redundant places. [2021-03-25 07:50:46,743 INFO L241 Difference]: Finished difference. Result has 763 places, 1191 transitions, 37823 flow [2021-03-25 07:50:46,744 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37585, PETRI_DIFFERENCE_MINUEND_PLACES=754, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1041, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37823, PETRI_PLACES=763, PETRI_TRANSITIONS=1191} [2021-03-25 07:50:46,744 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 732 predicate places. [2021-03-25 07:50:46,744 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:46,744 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 763 places, 1191 transitions, 37823 flow [2021-03-25 07:50:46,744 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 763 places, 1191 transitions, 37823 flow [2021-03-25 07:50:46,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 763 places, 1191 transitions, 37823 flow [2021-03-25 07:50:47,200 INFO L129 PetriNetUnfolder]: 641/1453 cut-off events. [2021-03-25 07:50:47,201 INFO L130 PetriNetUnfolder]: For 129182/129475 co-relation queries the response was YES. [2021-03-25 07:50:47,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21850 conditions, 1453 events. 641/1453 cut-off events. For 129182/129475 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 11298 event pairs, 2 based on Foata normal form. 55/1508 useless extension candidates. Maximal degree in co-relation 21450. Up to 449 conditions per place. [2021-03-25 07:50:47,257 INFO L142 LiptonReduction]: Number of co-enabled transitions 1534 [2021-03-25 07:50:47,423 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:50:47,423 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:50:47,423 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 679 [2021-03-25 07:50:47,423 INFO L480 AbstractCegarLoop]: Abstraction has has 763 places, 1191 transitions, 37823 flow [2021-03-25 07:50:47,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:47,424 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:47,424 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:47,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-25 07:50:47,424 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:47,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:47,424 INFO L82 PathProgramCache]: Analyzing trace with hash 388038132, now seen corresponding path program 1 times [2021-03-25 07:50:47,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:47,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541438684] [2021-03-25 07:50:47,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:47,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:47,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:47,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:47,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:47,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:47,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:47,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:47,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:47,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:47,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:47,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:47,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:47,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:47,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:47,469 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:47,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:47,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:47,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541438684] [2021-03-25 07:50:47,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:47,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:50:47,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366929010] [2021-03-25 07:50:47,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:50:47,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:47,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:50:47,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:50:47,474 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:50:47,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 763 places, 1191 transitions, 37823 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:47,474 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:47,474 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:50:47,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:48,682 INFO L129 PetriNetUnfolder]: 864/1841 cut-off events. [2021-03-25 07:50:48,682 INFO L130 PetriNetUnfolder]: For 186853/186853 co-relation queries the response was YES. [2021-03-25 07:50:48,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29548 conditions, 1841 events. 864/1841 cut-off events. For 186853/186853 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 13773 event pairs, 6 based on Foata normal form. 1/1842 useless extension candidates. Maximal degree in co-relation 29004. Up to 1592 conditions per place. [2021-03-25 07:50:48,729 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1145 selfloop transitions, 45 changer transitions 3/1198 dead transitions. [2021-03-25 07:50:48,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 768 places, 1198 transitions, 40323 flow [2021-03-25 07:50:48,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:50:48,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:50:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 204 transitions. [2021-03-25 07:50:48,730 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2021-03-25 07:50:48,730 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 204 transitions. [2021-03-25 07:50:48,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 204 transitions. [2021-03-25 07:50:48,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:48,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 204 transitions. [2021-03-25 07:50:48,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:48,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:48,731 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:48,732 INFO L185 Difference]: Start difference. First operand has 763 places, 1191 transitions, 37823 flow. Second operand 6 states and 204 transitions. [2021-03-25 07:50:48,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 768 places, 1198 transitions, 40323 flow [2021-03-25 07:50:50,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 757 places, 1198 transitions, 39974 flow, removed 6 selfloop flow, removed 11 redundant places. [2021-03-25 07:50:50,519 INFO L241 Difference]: Finished difference. Result has 759 places, 1189 transitions, 37533 flow [2021-03-25 07:50:50,520 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37474, PETRI_DIFFERENCE_MINUEND_PLACES=752, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=37533, PETRI_PLACES=759, PETRI_TRANSITIONS=1189} [2021-03-25 07:50:50,520 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 728 predicate places. [2021-03-25 07:50:50,520 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:50,520 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 759 places, 1189 transitions, 37533 flow [2021-03-25 07:50:50,520 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 759 places, 1189 transitions, 37533 flow [2021-03-25 07:50:50,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 759 places, 1189 transitions, 37533 flow [2021-03-25 07:50:50,960 INFO L129 PetriNetUnfolder]: 640/1441 cut-off events. [2021-03-25 07:50:50,960 INFO L130 PetriNetUnfolder]: For 131055/131290 co-relation queries the response was YES. [2021-03-25 07:50:50,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21643 conditions, 1441 events. 640/1441 cut-off events. For 131055/131290 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 11111 event pairs, 5 based on Foata normal form. 48/1489 useless extension candidates. Maximal degree in co-relation 21244. Up to 448 conditions per place. [2021-03-25 07:50:51,015 INFO L142 LiptonReduction]: Number of co-enabled transitions 1524 [2021-03-25 07:50:51,181 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:50:51,181 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:50:51,181 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 661 [2021-03-25 07:50:51,181 INFO L480 AbstractCegarLoop]: Abstraction has has 759 places, 1189 transitions, 37533 flow [2021-03-25 07:50:51,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:51,182 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:51,182 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:51,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-25 07:50:51,182 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:51,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:51,182 INFO L82 PathProgramCache]: Analyzing trace with hash -480572784, now seen corresponding path program 2 times [2021-03-25 07:50:51,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:51,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006812753] [2021-03-25 07:50:51,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:51,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:51,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:51,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:51,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:51,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:51,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:51,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:51,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:51,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:51,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:51,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:51,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:51,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:51,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:51,218 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:51,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:51,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:51,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006812753] [2021-03-25 07:50:51,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:51,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:50:51,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591475770] [2021-03-25 07:50:51,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:50:51,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:51,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:50:51,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:50:51,221 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:50:51,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 759 places, 1189 transitions, 37533 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:51,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:51,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:50:51,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:52,396 INFO L129 PetriNetUnfolder]: 862/1838 cut-off events. [2021-03-25 07:50:52,397 INFO L130 PetriNetUnfolder]: For 186801/186801 co-relation queries the response was YES. [2021-03-25 07:50:52,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29261 conditions, 1838 events. 862/1838 cut-off events. For 186801/186801 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 13765 event pairs, 10 based on Foata normal form. 1/1839 useless extension candidates. Maximal degree in co-relation 28717. Up to 1550 conditions per place. [2021-03-25 07:50:52,441 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1111 selfloop transitions, 78 changer transitions 3/1197 dead transitions. [2021-03-25 07:50:52,441 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 765 places, 1197 transitions, 40037 flow [2021-03-25 07:50:52,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:50:52,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:50:52,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 236 transitions. [2021-03-25 07:50:52,442 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5108225108225108 [2021-03-25 07:50:52,442 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 236 transitions. [2021-03-25 07:50:52,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 236 transitions. [2021-03-25 07:50:52,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:52,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 236 transitions. [2021-03-25 07:50:52,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:52,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:52,443 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:52,443 INFO L185 Difference]: Start difference. First operand has 759 places, 1189 transitions, 37533 flow. Second operand 7 states and 236 transitions. [2021-03-25 07:50:52,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 765 places, 1197 transitions, 40037 flow [2021-03-25 07:50:53,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 757 places, 1197 transitions, 39874 flow, removed 3 selfloop flow, removed 8 redundant places. [2021-03-25 07:50:53,969 INFO L241 Difference]: Finished difference. Result has 759 places, 1187 transitions, 37505 flow [2021-03-25 07:50:53,970 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37372, PETRI_DIFFERENCE_MINUEND_PLACES=751, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=37505, PETRI_PLACES=759, PETRI_TRANSITIONS=1187} [2021-03-25 07:50:53,970 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 728 predicate places. [2021-03-25 07:50:53,970 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:53,970 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 759 places, 1187 transitions, 37505 flow [2021-03-25 07:50:53,970 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 759 places, 1187 transitions, 37505 flow [2021-03-25 07:50:53,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 759 places, 1187 transitions, 37505 flow [2021-03-25 07:50:54,409 INFO L129 PetriNetUnfolder]: 639/1448 cut-off events. [2021-03-25 07:50:54,409 INFO L130 PetriNetUnfolder]: For 127120/127352 co-relation queries the response was YES. [2021-03-25 07:50:54,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21647 conditions, 1448 events. 639/1448 cut-off events. For 127120/127352 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 11207 event pairs, 2 based on Foata normal form. 45/1493 useless extension candidates. Maximal degree in co-relation 21249. Up to 447 conditions per place. [2021-03-25 07:50:54,461 INFO L142 LiptonReduction]: Number of co-enabled transitions 1512 [2021-03-25 07:50:54,626 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:50:54,626 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:50:54,626 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 656 [2021-03-25 07:50:54,626 INFO L480 AbstractCegarLoop]: Abstraction has has 759 places, 1187 transitions, 37505 flow [2021-03-25 07:50:54,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:54,626 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:54,627 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:54,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-25 07:50:54,627 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:54,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:54,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1274109466, now seen corresponding path program 3 times [2021-03-25 07:50:54,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:54,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990925884] [2021-03-25 07:50:54,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:54,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:54,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:54,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:54,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:54,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:54,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:54,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:54,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:54,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:54,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:54,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:54,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:54,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:54,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:54,668 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:54,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:54,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:54,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990925884] [2021-03-25 07:50:54,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:54,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:50:54,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511689236] [2021-03-25 07:50:54,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:50:54,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:54,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:50:54,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:50:54,673 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:50:54,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 759 places, 1187 transitions, 37505 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:54,673 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:54,673 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:50:54,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:55,954 INFO L129 PetriNetUnfolder]: 861/1839 cut-off events. [2021-03-25 07:50:55,954 INFO L130 PetriNetUnfolder]: For 185484/185484 co-relation queries the response was YES. [2021-03-25 07:50:55,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29428 conditions, 1839 events. 861/1839 cut-off events. For 185484/185484 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 13759 event pairs, 7 based on Foata normal form. 1/1840 useless extension candidates. Maximal degree in co-relation 28885. Up to 1560 conditions per place. [2021-03-25 07:50:56,000 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1087 selfloop transitions, 101 changer transitions 6/1199 dead transitions. [2021-03-25 07:50:56,000 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 765 places, 1199 transitions, 40374 flow [2021-03-25 07:50:56,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:50:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:50:56,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 235 transitions. [2021-03-25 07:50:56,001 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5086580086580087 [2021-03-25 07:50:56,001 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 235 transitions. [2021-03-25 07:50:56,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 235 transitions. [2021-03-25 07:50:56,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:56,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 235 transitions. [2021-03-25 07:50:56,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.57142857142857) internal successors, (235), 7 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:56,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:56,002 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:56,002 INFO L185 Difference]: Start difference. First operand has 759 places, 1187 transitions, 37505 flow. Second operand 7 states and 235 transitions. [2021-03-25 07:50:56,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 765 places, 1199 transitions, 40374 flow [2021-03-25 07:50:57,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 756 places, 1199 transitions, 40040 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 07:50:57,525 INFO L241 Difference]: Finished difference. Result has 760 places, 1187 transitions, 37561 flow [2021-03-25 07:50:57,526 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37175, PETRI_DIFFERENCE_MINUEND_PLACES=750, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1086, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=37561, PETRI_PLACES=760, PETRI_TRANSITIONS=1187} [2021-03-25 07:50:57,526 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 729 predicate places. [2021-03-25 07:50:57,526 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:50:57,526 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 760 places, 1187 transitions, 37561 flow [2021-03-25 07:50:57,526 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 760 places, 1187 transitions, 37561 flow [2021-03-25 07:50:57,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 760 places, 1187 transitions, 37561 flow [2021-03-25 07:50:57,962 INFO L129 PetriNetUnfolder]: 638/1450 cut-off events. [2021-03-25 07:50:57,962 INFO L130 PetriNetUnfolder]: For 127707/127939 co-relation queries the response was YES. [2021-03-25 07:50:57,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21714 conditions, 1450 events. 638/1450 cut-off events. For 127707/127939 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 11240 event pairs, 2 based on Foata normal form. 45/1495 useless extension candidates. Maximal degree in co-relation 21316. Up to 448 conditions per place. [2021-03-25 07:50:58,016 INFO L142 LiptonReduction]: Number of co-enabled transitions 1506 [2021-03-25 07:50:58,169 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:50:58,169 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:50:58,169 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 643 [2021-03-25 07:50:58,170 INFO L480 AbstractCegarLoop]: Abstraction has has 760 places, 1187 transitions, 37561 flow [2021-03-25 07:50:58,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:58,170 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:50:58,170 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:50:58,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-03-25 07:50:58,170 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:50:58,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:50:58,170 INFO L82 PathProgramCache]: Analyzing trace with hash 342567116, now seen corresponding path program 4 times [2021-03-25 07:50:58,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:50:58,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909133412] [2021-03-25 07:50:58,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:50:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:50:58,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:58,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:58,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:58,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:58,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:58,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:58,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:58,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:58,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:58,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:58,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:58,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:50:58,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:50:58,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:50:58,221 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:50:58,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:50:58,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:50:58,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909133412] [2021-03-25 07:50:58,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:50:58,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:50:58,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609607994] [2021-03-25 07:50:58,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:50:58,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:50:58,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:50:58,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:50:58,224 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:50:58,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 760 places, 1187 transitions, 37561 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:58,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:50:58,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:50:58,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:50:59,616 INFO L129 PetriNetUnfolder]: 859/1833 cut-off events. [2021-03-25 07:50:59,616 INFO L130 PetriNetUnfolder]: For 185476/185476 co-relation queries the response was YES. [2021-03-25 07:50:59,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29373 conditions, 1833 events. 859/1833 cut-off events. For 185476/185476 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 13750 event pairs, 9 based on Foata normal form. 1/1834 useless extension candidates. Maximal degree in co-relation 28831. Up to 1511 conditions per place. [2021-03-25 07:50:59,660 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1041 selfloop transitions, 146 changer transitions 6/1198 dead transitions. [2021-03-25 07:50:59,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 767 places, 1198 transitions, 40347 flow [2021-03-25 07:50:59,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:50:59,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:50:59,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 267 transitions. [2021-03-25 07:50:59,661 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5056818181818182 [2021-03-25 07:50:59,662 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 267 transitions. [2021-03-25 07:50:59,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 267 transitions. [2021-03-25 07:50:59,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:50:59,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 267 transitions. [2021-03-25 07:50:59,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:59,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:59,662 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:50:59,662 INFO L185 Difference]: Start difference. First operand has 760 places, 1187 transitions, 37561 flow. Second operand 8 states and 267 transitions. [2021-03-25 07:50:59,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 767 places, 1198 transitions, 40347 flow [2021-03-25 07:51:01,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 760 places, 1198 transitions, 40128 flow, removed 8 selfloop flow, removed 7 redundant places. [2021-03-25 07:51:01,358 INFO L241 Difference]: Finished difference. Result has 764 places, 1185 transitions, 37772 flow [2021-03-25 07:51:01,359 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37350, PETRI_DIFFERENCE_MINUEND_PLACES=753, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1041, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37772, PETRI_PLACES=764, PETRI_TRANSITIONS=1185} [2021-03-25 07:51:01,359 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 733 predicate places. [2021-03-25 07:51:01,359 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:01,359 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 764 places, 1185 transitions, 37772 flow [2021-03-25 07:51:01,359 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 764 places, 1185 transitions, 37772 flow [2021-03-25 07:51:01,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 764 places, 1185 transitions, 37772 flow [2021-03-25 07:51:01,802 INFO L129 PetriNetUnfolder]: 637/1447 cut-off events. [2021-03-25 07:51:01,802 INFO L130 PetriNetUnfolder]: For 129491/129730 co-relation queries the response was YES. [2021-03-25 07:51:01,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21840 conditions, 1447 events. 637/1447 cut-off events. For 129491/129730 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 11212 event pairs, 3 based on Foata normal form. 48/1495 useless extension candidates. Maximal degree in co-relation 21439. Up to 447 conditions per place. [2021-03-25 07:51:01,855 INFO L142 LiptonReduction]: Number of co-enabled transitions 1498 [2021-03-25 07:51:02,080 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:02,081 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:02,081 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 722 [2021-03-25 07:51:02,081 INFO L480 AbstractCegarLoop]: Abstraction has has 764 places, 1185 transitions, 37772 flow [2021-03-25 07:51:02,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:02,081 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:02,081 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:02,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-03-25 07:51:02,081 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:02,082 INFO L82 PathProgramCache]: Analyzing trace with hash -824820147, now seen corresponding path program 2 times [2021-03-25 07:51:02,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:02,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262169462] [2021-03-25 07:51:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:02,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:02,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:02,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:02,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:02,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:02,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:02,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:02,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:02,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:02,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:02,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:02,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:02,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:02,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:02,124 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:02,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:02,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:02,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262169462] [2021-03-25 07:51:02,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:02,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:51:02,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118869962] [2021-03-25 07:51:02,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:51:02,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:02,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:51:02,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:51:02,128 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:02,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 764 places, 1185 transitions, 37772 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:02,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:02,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:02,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:03,425 INFO L129 PetriNetUnfolder]: 845/1816 cut-off events. [2021-03-25 07:51:03,425 INFO L130 PetriNetUnfolder]: For 169537/169546 co-relation queries the response was YES. [2021-03-25 07:51:03,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28642 conditions, 1816 events. 845/1816 cut-off events. For 169537/169546 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 13748 event pairs, 17 based on Foata normal form. 10/1826 useless extension candidates. Maximal degree in co-relation 28095. Up to 1481 conditions per place. [2021-03-25 07:51:03,472 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1087 selfloop transitions, 93 changer transitions 10/1195 dead transitions. [2021-03-25 07:51:03,472 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 770 places, 1195 transitions, 40350 flow [2021-03-25 07:51:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:51:03,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:51:03,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:51:03,473 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5064935064935064 [2021-03-25 07:51:03,473 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:51:03,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:51:03,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:03,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:51:03,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:03,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:03,474 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:03,474 INFO L185 Difference]: Start difference. First operand has 764 places, 1185 transitions, 37772 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:51:03,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 770 places, 1195 transitions, 40350 flow [2021-03-25 07:51:05,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 759 places, 1195 transitions, 39888 flow, removed 4 selfloop flow, removed 11 redundant places. [2021-03-25 07:51:05,263 INFO L241 Difference]: Finished difference. Result has 762 places, 1180 transitions, 37477 flow [2021-03-25 07:51:05,264 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37312, PETRI_DIFFERENCE_MINUEND_PLACES=753, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1092, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=37477, PETRI_PLACES=762, PETRI_TRANSITIONS=1180} [2021-03-25 07:51:05,264 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 731 predicate places. [2021-03-25 07:51:05,264 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:05,264 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 762 places, 1180 transitions, 37477 flow [2021-03-25 07:51:05,265 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 762 places, 1180 transitions, 37477 flow [2021-03-25 07:51:05,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 762 places, 1180 transitions, 37477 flow [2021-03-25 07:51:05,728 INFO L129 PetriNetUnfolder]: 633/1420 cut-off events. [2021-03-25 07:51:05,728 INFO L130 PetriNetUnfolder]: For 130682/130909 co-relation queries the response was YES. [2021-03-25 07:51:05,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21659 conditions, 1420 events. 633/1420 cut-off events. For 130682/130909 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 10937 event pairs, 1 based on Foata normal form. 46/1466 useless extension candidates. Maximal degree in co-relation 21258. Up to 446 conditions per place. [2021-03-25 07:51:05,784 INFO L142 LiptonReduction]: Number of co-enabled transitions 1476 [2021-03-25 07:51:05,948 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:05,948 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:05,948 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 684 [2021-03-25 07:51:05,948 INFO L480 AbstractCegarLoop]: Abstraction has has 762 places, 1180 transitions, 37477 flow [2021-03-25 07:51:05,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:05,948 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:05,949 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:05,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-03-25 07:51:05,949 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:05,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:05,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1845564272, now seen corresponding path program 5 times [2021-03-25 07:51:05,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:05,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697678560] [2021-03-25 07:51:05,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:05,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:05,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:05,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:05,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:05,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:05,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:05,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:05,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:05,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:05,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:51:05,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:05,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:05,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:05,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:05,993 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:05,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:05,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:05,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697678560] [2021-03-25 07:51:05,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:05,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:51:05,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486087643] [2021-03-25 07:51:05,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:51:05,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:05,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:51:05,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:51:05,996 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:05,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 762 places, 1180 transitions, 37477 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:05,996 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:05,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:05,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:07,191 INFO L129 PetriNetUnfolder]: 852/1822 cut-off events. [2021-03-25 07:51:07,191 INFO L130 PetriNetUnfolder]: For 190114/190114 co-relation queries the response was YES. [2021-03-25 07:51:07,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29551 conditions, 1822 events. 852/1822 cut-off events. For 190114/190114 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 13708 event pairs, 6 based on Foata normal form. 1/1823 useless extension candidates. Maximal degree in co-relation 29005. Up to 1524 conditions per place. [2021-03-25 07:51:07,241 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1036 selfloop transitions, 148 changer transitions 6/1195 dead transitions. [2021-03-25 07:51:07,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 769 places, 1195 transitions, 40711 flow [2021-03-25 07:51:07,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:51:07,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:51:07,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 266 transitions. [2021-03-25 07:51:07,242 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5037878787878788 [2021-03-25 07:51:07,242 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 266 transitions. [2021-03-25 07:51:07,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 266 transitions. [2021-03-25 07:51:07,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:07,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 266 transitions. [2021-03-25 07:51:07,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.25) internal successors, (266), 8 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:07,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:07,243 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:07,243 INFO L185 Difference]: Start difference. First operand has 762 places, 1180 transitions, 37477 flow. Second operand 8 states and 266 transitions. [2021-03-25 07:51:07,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 769 places, 1195 transitions, 40711 flow [2021-03-25 07:51:08,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 763 places, 1195 transitions, 40504 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-25 07:51:08,937 INFO L241 Difference]: Finished difference. Result has 768 places, 1183 transitions, 38024 flow [2021-03-25 07:51:08,938 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37276, PETRI_DIFFERENCE_MINUEND_PLACES=756, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1033, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=38024, PETRI_PLACES=768, PETRI_TRANSITIONS=1183} [2021-03-25 07:51:08,938 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 737 predicate places. [2021-03-25 07:51:08,938 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:08,938 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 768 places, 1183 transitions, 38024 flow [2021-03-25 07:51:08,938 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 768 places, 1183 transitions, 38024 flow [2021-03-25 07:51:08,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 768 places, 1183 transitions, 38024 flow [2021-03-25 07:51:09,387 INFO L129 PetriNetUnfolder]: 634/1419 cut-off events. [2021-03-25 07:51:09,387 INFO L130 PetriNetUnfolder]: For 136518/136819 co-relation queries the response was YES. [2021-03-25 07:51:09,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21999 conditions, 1419 events. 634/1419 cut-off events. For 136518/136819 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 10858 event pairs, 1 based on Foata normal form. 47/1464 useless extension candidates. Maximal degree in co-relation 21595. Up to 446 conditions per place. [2021-03-25 07:51:09,441 INFO L142 LiptonReduction]: Number of co-enabled transitions 1482 [2021-03-25 07:51:09,599 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:09,600 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:09,600 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 662 [2021-03-25 07:51:09,600 INFO L480 AbstractCegarLoop]: Abstraction has has 768 places, 1183 transitions, 38024 flow [2021-03-25 07:51:09,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:09,600 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:09,600 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:09,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-03-25 07:51:09,600 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:09,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:09,601 INFO L82 PathProgramCache]: Analyzing trace with hash 2118426352, now seen corresponding path program 6 times [2021-03-25 07:51:09,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:09,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596234364] [2021-03-25 07:51:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:09,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:09,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:09,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:09,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:09,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:09,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:09,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:09,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:09,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:09,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:51:09,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:09,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:09,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:09,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:09,646 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:09,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:09,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:09,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596234364] [2021-03-25 07:51:09,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:09,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:51:09,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462689638] [2021-03-25 07:51:09,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:51:09,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:09,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:51:09,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:51:09,649 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:09,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 768 places, 1183 transitions, 38024 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:09,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:09,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:09,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:10,929 INFO L129 PetriNetUnfolder]: 850/1819 cut-off events. [2021-03-25 07:51:10,929 INFO L130 PetriNetUnfolder]: For 190726/190726 co-relation queries the response was YES. [2021-03-25 07:51:10,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29612 conditions, 1819 events. 850/1819 cut-off events. For 190726/190726 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 13590 event pairs, 9 based on Foata normal form. 1/1820 useless extension candidates. Maximal degree in co-relation 29061. Up to 1522 conditions per place. [2021-03-25 07:51:10,976 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1066 selfloop transitions, 118 changer transitions 4/1193 dead transitions. [2021-03-25 07:51:10,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 775 places, 1193 transitions, 40722 flow [2021-03-25 07:51:10,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:51:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:51:10,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 267 transitions. [2021-03-25 07:51:10,977 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5056818181818182 [2021-03-25 07:51:10,977 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 267 transitions. [2021-03-25 07:51:10,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 267 transitions. [2021-03-25 07:51:10,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:10,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 267 transitions. [2021-03-25 07:51:10,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:10,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:10,978 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:10,978 INFO L185 Difference]: Start difference. First operand has 768 places, 1183 transitions, 38024 flow. Second operand 8 states and 267 transitions. [2021-03-25 07:51:10,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 775 places, 1193 transitions, 40722 flow [2021-03-25 07:51:12,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 769 places, 1193 transitions, 40247 flow, removed 107 selfloop flow, removed 6 redundant places. [2021-03-25 07:51:12,950 INFO L241 Difference]: Finished difference. Result has 772 places, 1182 transitions, 37951 flow [2021-03-25 07:51:12,951 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37549, PETRI_DIFFERENCE_MINUEND_PLACES=762, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1065, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37951, PETRI_PLACES=772, PETRI_TRANSITIONS=1182} [2021-03-25 07:51:12,951 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 741 predicate places. [2021-03-25 07:51:12,951 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:12,951 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 772 places, 1182 transitions, 37951 flow [2021-03-25 07:51:12,951 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 772 places, 1182 transitions, 37951 flow [2021-03-25 07:51:12,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 772 places, 1182 transitions, 37951 flow [2021-03-25 07:51:13,412 INFO L129 PetriNetUnfolder]: 633/1441 cut-off events. [2021-03-25 07:51:13,412 INFO L130 PetriNetUnfolder]: For 130589/130710 co-relation queries the response was YES. [2021-03-25 07:51:13,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22042 conditions, 1441 events. 633/1441 cut-off events. For 130589/130710 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 11219 event pairs, 1 based on Foata normal form. 12/1452 useless extension candidates. Maximal degree in co-relation 21636. Up to 446 conditions per place. [2021-03-25 07:51:13,467 INFO L142 LiptonReduction]: Number of co-enabled transitions 1482 [2021-03-25 07:51:13,634 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:13,634 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:13,634 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 683 [2021-03-25 07:51:13,634 INFO L480 AbstractCegarLoop]: Abstraction has has 772 places, 1182 transitions, 37951 flow [2021-03-25 07:51:13,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:13,634 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:13,635 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:13,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-03-25 07:51:13,635 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:13,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:13,635 INFO L82 PathProgramCache]: Analyzing trace with hash -881268851, now seen corresponding path program 3 times [2021-03-25 07:51:13,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:13,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059895558] [2021-03-25 07:51:13,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:13,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:13,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:13,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:13,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:13,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:13,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:13,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:13,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:13,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:13,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:13,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:13,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:13,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:13,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:13,696 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:13,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:13,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:13,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059895558] [2021-03-25 07:51:13,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:13,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:51:13,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667747053] [2021-03-25 07:51:13,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:51:13,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:13,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:51:13,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:51:13,706 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:13,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 772 places, 1182 transitions, 37951 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:13,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:13,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:13,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:14,946 INFO L129 PetriNetUnfolder]: 837/1795 cut-off events. [2021-03-25 07:51:14,946 INFO L130 PetriNetUnfolder]: For 176905/176926 co-relation queries the response was YES. [2021-03-25 07:51:14,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28966 conditions, 1795 events. 837/1795 cut-off events. For 176905/176926 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 13489 event pairs, 9 based on Foata normal form. 20/1815 useless extension candidates. Maximal degree in co-relation 28411. Up to 1481 conditions per place. [2021-03-25 07:51:15,004 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1088 selfloop transitions, 91 changer transitions 9/1193 dead transitions. [2021-03-25 07:51:15,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 778 places, 1193 transitions, 40879 flow [2021-03-25 07:51:15,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:51:15,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:51:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:51:15,005 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5064935064935064 [2021-03-25 07:51:15,005 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:51:15,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:51:15,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:15,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:51:15,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:15,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:15,006 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:15,006 INFO L185 Difference]: Start difference. First operand has 772 places, 1182 transitions, 37951 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:51:15,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 778 places, 1193 transitions, 40879 flow [2021-03-25 07:51:16,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 770 places, 1193 transitions, 40503 flow, removed 42 selfloop flow, removed 8 redundant places. [2021-03-25 07:51:16,783 INFO L241 Difference]: Finished difference. Result has 775 places, 1179 transitions, 37807 flow [2021-03-25 07:51:16,783 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37575, PETRI_DIFFERENCE_MINUEND_PLACES=764, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1091, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=37807, PETRI_PLACES=775, PETRI_TRANSITIONS=1179} [2021-03-25 07:51:16,784 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 744 predicate places. [2021-03-25 07:51:16,784 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:16,784 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 775 places, 1179 transitions, 37807 flow [2021-03-25 07:51:16,784 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 775 places, 1179 transitions, 37807 flow [2021-03-25 07:51:16,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 775 places, 1179 transitions, 37807 flow [2021-03-25 07:51:17,254 INFO L129 PetriNetUnfolder]: 631/1421 cut-off events. [2021-03-25 07:51:17,254 INFO L130 PetriNetUnfolder]: For 134720/134946 co-relation queries the response was YES. [2021-03-25 07:51:17,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21996 conditions, 1421 events. 631/1421 cut-off events. For 134720/134946 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 10981 event pairs, 0 based on Foata normal form. 46/1466 useless extension candidates. Maximal degree in co-relation 21587. Up to 444 conditions per place. [2021-03-25 07:51:17,310 INFO L142 LiptonReduction]: Number of co-enabled transitions 1480 [2021-03-25 07:51:17,460 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:17,460 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:17,460 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 676 [2021-03-25 07:51:17,460 INFO L480 AbstractCegarLoop]: Abstraction has has 775 places, 1179 transitions, 37807 flow [2021-03-25 07:51:17,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:17,460 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:17,461 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:17,461 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-03-25 07:51:17,461 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:17,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:17,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1740738027, now seen corresponding path program 4 times [2021-03-25 07:51:17,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:17,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947786360] [2021-03-25 07:51:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:17,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:17,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:17,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:17,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:17,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:17,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:17,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:17,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:17,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:17,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:17,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:17,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:17,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:17,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:17,512 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:17,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:17,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947786360] [2021-03-25 07:51:17,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:17,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:51:17,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037873961] [2021-03-25 07:51:17,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:51:17,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:17,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:51:17,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:51:17,516 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:17,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 775 places, 1179 transitions, 37807 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:17,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:17,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:17,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:18,685 INFO L129 PetriNetUnfolder]: 842/1813 cut-off events. [2021-03-25 07:51:18,685 INFO L130 PetriNetUnfolder]: For 180828/180837 co-relation queries the response was YES. [2021-03-25 07:51:18,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29360 conditions, 1813 events. 842/1813 cut-off events. For 180828/180837 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 13720 event pairs, 9 based on Foata normal form. 10/1823 useless extension candidates. Maximal degree in co-relation 28802. Up to 1447 conditions per place. [2021-03-25 07:51:18,734 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1035 selfloop transitions, 140 changer transitions 25/1205 dead transitions. [2021-03-25 07:51:18,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 782 places, 1205 transitions, 41312 flow [2021-03-25 07:51:18,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:51:18,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:51:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:51:18,735 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5018939393939394 [2021-03-25 07:51:18,735 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:51:18,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:51:18,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:18,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:51:18,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:18,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:18,736 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:18,736 INFO L185 Difference]: Start difference. First operand has 775 places, 1179 transitions, 37807 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:51:18,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 782 places, 1205 transitions, 41312 flow [2021-03-25 07:51:20,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 772 places, 1205 transitions, 40900 flow, removed 82 selfloop flow, removed 10 redundant places. [2021-03-25 07:51:20,604 INFO L241 Difference]: Finished difference. Result has 778 places, 1175 transitions, 37604 flow [2021-03-25 07:51:20,604 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37409, PETRI_DIFFERENCE_MINUEND_PLACES=765, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1041, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37604, PETRI_PLACES=778, PETRI_TRANSITIONS=1175} [2021-03-25 07:51:20,604 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 747 predicate places. [2021-03-25 07:51:20,604 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:20,604 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 778 places, 1175 transitions, 37604 flow [2021-03-25 07:51:20,604 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 778 places, 1175 transitions, 37604 flow [2021-03-25 07:51:20,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 778 places, 1175 transitions, 37604 flow [2021-03-25 07:51:21,057 INFO L129 PetriNetUnfolder]: 629/1434 cut-off events. [2021-03-25 07:51:21,057 INFO L130 PetriNetUnfolder]: For 137833/138085 co-relation queries the response was YES. [2021-03-25 07:51:21,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21932 conditions, 1434 events. 629/1434 cut-off events. For 137833/138085 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 11174 event pairs, 1 based on Foata normal form. 43/1476 useless extension candidates. Maximal degree in co-relation 21522. Up to 442 conditions per place. [2021-03-25 07:51:21,110 INFO L142 LiptonReduction]: Number of co-enabled transitions 1498 [2021-03-25 07:51:21,270 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:21,270 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:21,270 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 666 [2021-03-25 07:51:21,270 INFO L480 AbstractCegarLoop]: Abstraction has has 778 places, 1175 transitions, 37604 flow [2021-03-25 07:51:21,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:21,271 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:21,271 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:21,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-03-25 07:51:21,271 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:21,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:21,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1795074830, now seen corresponding path program 2 times [2021-03-25 07:51:21,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:21,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843768568] [2021-03-25 07:51:21,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:21,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:21,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:21,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:21,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:21,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:21,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:21,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:21,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:21,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:21,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:21,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:21,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:21,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:21,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:21,305 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:21,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:21,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:21,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843768568] [2021-03-25 07:51:21,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:21,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:51:21,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836283813] [2021-03-25 07:51:21,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:51:21,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:21,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:51:21,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:51:21,308 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:21,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 778 places, 1175 transitions, 37604 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:21,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:21,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:21,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:22,466 INFO L129 PetriNetUnfolder]: 838/1798 cut-off events. [2021-03-25 07:51:22,466 INFO L130 PetriNetUnfolder]: For 186363/186363 co-relation queries the response was YES. [2021-03-25 07:51:22,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29266 conditions, 1798 events. 838/1798 cut-off events. For 186363/186363 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 13471 event pairs, 9 based on Foata normal form. 1/1799 useless extension candidates. Maximal degree in co-relation 28853. Up to 1529 conditions per place. [2021-03-25 07:51:22,511 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1118 selfloop transitions, 54 changer transitions 7/1184 dead transitions. [2021-03-25 07:51:22,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 783 places, 1184 transitions, 40382 flow [2021-03-25 07:51:22,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:51:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:51:22,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 203 transitions. [2021-03-25 07:51:22,512 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5126262626262627 [2021-03-25 07:51:22,512 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 203 transitions. [2021-03-25 07:51:22,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 203 transitions. [2021-03-25 07:51:22,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:22,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 203 transitions. [2021-03-25 07:51:22,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.833333333333336) internal successors, (203), 6 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:22,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:22,513 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:22,513 INFO L185 Difference]: Start difference. First operand has 778 places, 1175 transitions, 37604 flow. Second operand 6 states and 203 transitions. [2021-03-25 07:51:22,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 783 places, 1184 transitions, 40382 flow [2021-03-25 07:51:24,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 772 places, 1184 transitions, 40062 flow, removed 62 selfloop flow, removed 11 redundant places. [2021-03-25 07:51:24,381 INFO L241 Difference]: Finished difference. Result has 776 places, 1172 transitions, 37382 flow [2021-03-25 07:51:24,381 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37290, PETRI_DIFFERENCE_MINUEND_PLACES=767, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=37382, PETRI_PLACES=776, PETRI_TRANSITIONS=1172} [2021-03-25 07:51:24,381 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 745 predicate places. [2021-03-25 07:51:24,381 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:24,381 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 776 places, 1172 transitions, 37382 flow [2021-03-25 07:51:24,382 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 776 places, 1172 transitions, 37382 flow [2021-03-25 07:51:24,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 776 places, 1172 transitions, 37382 flow [2021-03-25 07:51:24,835 INFO L129 PetriNetUnfolder]: 627/1430 cut-off events. [2021-03-25 07:51:24,835 INFO L130 PetriNetUnfolder]: For 135631/135767 co-relation queries the response was YES. [2021-03-25 07:51:24,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21873 conditions, 1430 events. 627/1430 cut-off events. For 135631/135767 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 11159 event pairs, 0 based on Foata normal form. 44/1472 useless extension candidates. Maximal degree in co-relation 21459. Up to 440 conditions per place. [2021-03-25 07:51:24,893 INFO L142 LiptonReduction]: Number of co-enabled transitions 1502 [2021-03-25 07:51:25,058 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:25,058 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:25,058 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 677 [2021-03-25 07:51:25,059 INFO L480 AbstractCegarLoop]: Abstraction has has 776 places, 1172 transitions, 37382 flow [2021-03-25 07:51:25,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:25,059 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:25,059 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:25,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-03-25 07:51:25,059 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:25,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:25,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1990649332, now seen corresponding path program 3 times [2021-03-25 07:51:25,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:25,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958918167] [2021-03-25 07:51:25,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:25,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:25,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:25,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:25,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:25,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:25,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:25,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:25,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:25,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:25,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:25,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:25,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:25,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:25,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:25,104 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:25,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:25,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:25,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958918167] [2021-03-25 07:51:25,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:25,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:51:25,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685849667] [2021-03-25 07:51:25,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:51:25,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:25,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:51:25,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:51:25,108 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:25,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 776 places, 1172 transitions, 37382 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:25,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:25,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:25,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:26,580 INFO L129 PetriNetUnfolder]: 835/1796 cut-off events. [2021-03-25 07:51:26,580 INFO L130 PetriNetUnfolder]: For 185737/185737 co-relation queries the response was YES. [2021-03-25 07:51:26,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29147 conditions, 1796 events. 835/1796 cut-off events. For 185737/185737 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 13476 event pairs, 10 based on Foata normal form. 1/1797 useless extension candidates. Maximal degree in co-relation 28730. Up to 1488 conditions per place. [2021-03-25 07:51:26,626 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1057 selfloop transitions, 99 changer transitions 19/1180 dead transitions. [2021-03-25 07:51:26,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 782 places, 1180 transitions, 40054 flow [2021-03-25 07:51:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:51:26,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:51:26,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:51:26,627 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5064935064935064 [2021-03-25 07:51:26,627 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:51:26,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:51:26,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:26,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:51:26,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:26,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:26,627 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:26,628 INFO L185 Difference]: Start difference. First operand has 776 places, 1172 transitions, 37382 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:51:26,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 782 places, 1180 transitions, 40054 flow [2021-03-25 07:51:28,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 774 places, 1180 transitions, 39784 flow, removed 51 selfloop flow, removed 8 redundant places. [2021-03-25 07:51:28,429 INFO L241 Difference]: Finished difference. Result has 778 places, 1156 transitions, 36742 flow [2021-03-25 07:51:28,429 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37118, PETRI_DIFFERENCE_MINUEND_PLACES=768, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1073, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=36742, PETRI_PLACES=778, PETRI_TRANSITIONS=1156} [2021-03-25 07:51:28,429 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 747 predicate places. [2021-03-25 07:51:28,429 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:28,430 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 778 places, 1156 transitions, 36742 flow [2021-03-25 07:51:28,430 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 778 places, 1156 transitions, 36742 flow [2021-03-25 07:51:28,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 778 places, 1156 transitions, 36742 flow [2021-03-25 07:51:28,887 INFO L129 PetriNetUnfolder]: 620/1410 cut-off events. [2021-03-25 07:51:28,888 INFO L130 PetriNetUnfolder]: For 131362/131589 co-relation queries the response was YES. [2021-03-25 07:51:28,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21534 conditions, 1410 events. 620/1410 cut-off events. For 131362/131589 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 10963 event pairs, 1 based on Foata normal form. 37/1446 useless extension candidates. Maximal degree in co-relation 21121. Up to 434 conditions per place. [2021-03-25 07:51:29,003 INFO L142 LiptonReduction]: Number of co-enabled transitions 1464 [2021-03-25 07:51:29,152 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:29,153 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:29,153 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 724 [2021-03-25 07:51:29,153 INFO L480 AbstractCegarLoop]: Abstraction has has 778 places, 1156 transitions, 36742 flow [2021-03-25 07:51:29,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:29,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:29,153 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:29,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-03-25 07:51:29,153 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:29,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:29,154 INFO L82 PathProgramCache]: Analyzing trace with hash -720355690, now seen corresponding path program 7 times [2021-03-25 07:51:29,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:29,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448026942] [2021-03-25 07:51:29,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:29,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:29,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:29,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:29,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:29,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:29,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:29,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:29,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:29,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:29,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:51:29,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:29,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:29,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:29,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:29,205 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:29,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:29,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:29,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448026942] [2021-03-25 07:51:29,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:29,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:51:29,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037564546] [2021-03-25 07:51:29,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:51:29,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:29,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:51:29,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:51:29,208 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:29,208 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 778 places, 1156 transitions, 36742 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:29,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:29,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:29,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:30,414 INFO L129 PetriNetUnfolder]: 825/1770 cut-off events. [2021-03-25 07:51:30,414 INFO L130 PetriNetUnfolder]: For 187121/187121 co-relation queries the response was YES. [2021-03-25 07:51:30,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28664 conditions, 1770 events. 825/1770 cut-off events. For 187121/187121 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 13258 event pairs, 5 based on Foata normal form. 1/1771 useless extension candidates. Maximal degree in co-relation 28110. Up to 1516 conditions per place. [2021-03-25 07:51:30,462 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1076 selfloop transitions, 77 changer transitions 5/1163 dead transitions. [2021-03-25 07:51:30,462 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 785 places, 1163 transitions, 39186 flow [2021-03-25 07:51:30,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:51:30,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:51:30,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 266 transitions. [2021-03-25 07:51:30,463 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5037878787878788 [2021-03-25 07:51:30,463 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 266 transitions. [2021-03-25 07:51:30,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 266 transitions. [2021-03-25 07:51:30,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:30,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 266 transitions. [2021-03-25 07:51:30,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.25) internal successors, (266), 8 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:30,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:30,464 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:30,464 INFO L185 Difference]: Start difference. First operand has 778 places, 1156 transitions, 36742 flow. Second operand 8 states and 266 transitions. [2021-03-25 07:51:30,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 785 places, 1163 transitions, 39186 flow [2021-03-25 07:51:32,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 769 places, 1163 transitions, 38818 flow, removed 11 selfloop flow, removed 16 redundant places. [2021-03-25 07:51:32,305 INFO L241 Difference]: Finished difference. Result has 771 places, 1152 transitions, 36487 flow [2021-03-25 07:51:32,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=36378, PETRI_DIFFERENCE_MINUEND_PLACES=762, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1079, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=36487, PETRI_PLACES=771, PETRI_TRANSITIONS=1152} [2021-03-25 07:51:32,306 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 740 predicate places. [2021-03-25 07:51:32,306 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:32,306 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 771 places, 1152 transitions, 36487 flow [2021-03-25 07:51:32,306 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 771 places, 1152 transitions, 36487 flow [2021-03-25 07:51:32,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 771 places, 1152 transitions, 36487 flow [2021-03-25 07:51:32,743 INFO L129 PetriNetUnfolder]: 619/1395 cut-off events. [2021-03-25 07:51:32,744 INFO L130 PetriNetUnfolder]: For 130100/130237 co-relation queries the response was YES. [2021-03-25 07:51:32,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21324 conditions, 1395 events. 619/1395 cut-off events. For 130100/130237 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 10754 event pairs, 0 based on Foata normal form. 40/1433 useless extension candidates. Maximal degree in co-relation 20917. Up to 434 conditions per place. [2021-03-25 07:51:32,797 INFO L142 LiptonReduction]: Number of co-enabled transitions 1454 [2021-03-25 07:51:32,948 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:32,948 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:32,948 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 642 [2021-03-25 07:51:32,949 INFO L480 AbstractCegarLoop]: Abstraction has has 771 places, 1152 transitions, 36487 flow [2021-03-25 07:51:32,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:32,949 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:32,949 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:32,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-03-25 07:51:32,949 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:32,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:32,949 INFO L82 PathProgramCache]: Analyzing trace with hash 280692853, now seen corresponding path program 5 times [2021-03-25 07:51:32,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:32,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673153790] [2021-03-25 07:51:32,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:32,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:32,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:32,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:32,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:32,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:32,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:32,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:32,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:32,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:32,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:32,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:32,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:32,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:32,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:32,978 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:32,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:32,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:32,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673153790] [2021-03-25 07:51:32,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:32,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:51:32,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997527322] [2021-03-25 07:51:32,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:51:32,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:32,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:51:32,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:51:32,981 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:32,981 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 771 places, 1152 transitions, 36487 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:32,981 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:32,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:32,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:34,178 INFO L129 PetriNetUnfolder]: 816/1754 cut-off events. [2021-03-25 07:51:34,178 INFO L130 PetriNetUnfolder]: For 186356/186382 co-relation queries the response was YES. [2021-03-25 07:51:34,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27865 conditions, 1754 events. 816/1754 cut-off events. For 186356/186382 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 13113 event pairs, 149 based on Foata normal form. 16/1769 useless extension candidates. Maximal degree in co-relation 27316. Up to 1494 conditions per place. [2021-03-25 07:51:34,216 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1094 selfloop transitions, 65 changer transitions 3/1167 dead transitions. [2021-03-25 07:51:34,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 776 places, 1167 transitions, 39386 flow [2021-03-25 07:51:34,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:51:34,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:51:34,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2021-03-25 07:51:34,217 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5075757575757576 [2021-03-25 07:51:34,217 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 201 transitions. [2021-03-25 07:51:34,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 201 transitions. [2021-03-25 07:51:34,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:34,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 201 transitions. [2021-03-25 07:51:34,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:34,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:34,218 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:34,218 INFO L185 Difference]: Start difference. First operand has 771 places, 1152 transitions, 36487 flow. Second operand 6 states and 201 transitions. [2021-03-25 07:51:34,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 776 places, 1167 transitions, 39386 flow [2021-03-25 07:51:35,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 761 places, 1167 transitions, 39070 flow, removed 8 selfloop flow, removed 15 redundant places. [2021-03-25 07:51:35,990 INFO L241 Difference]: Finished difference. Result has 765 places, 1160 transitions, 36692 flow [2021-03-25 07:51:35,990 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=36175, PETRI_DIFFERENCE_MINUEND_PLACES=756, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1088, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=36692, PETRI_PLACES=765, PETRI_TRANSITIONS=1160} [2021-03-25 07:51:35,990 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 734 predicate places. [2021-03-25 07:51:35,991 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:35,991 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 765 places, 1160 transitions, 36692 flow [2021-03-25 07:51:35,991 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 765 places, 1160 transitions, 36692 flow [2021-03-25 07:51:36,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 765 places, 1160 transitions, 36692 flow [2021-03-25 07:51:36,442 INFO L129 PetriNetUnfolder]: 622/1410 cut-off events. [2021-03-25 07:51:36,442 INFO L130 PetriNetUnfolder]: For 127978/128114 co-relation queries the response was YES. [2021-03-25 07:51:36,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21430 conditions, 1410 events. 622/1410 cut-off events. For 127978/128114 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 10889 event pairs, 2 based on Foata normal form. 40/1449 useless extension candidates. Maximal degree in co-relation 21023. Up to 436 conditions per place. [2021-03-25 07:51:36,496 INFO L142 LiptonReduction]: Number of co-enabled transitions 1470 [2021-03-25 07:51:36,648 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:36,648 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:36,648 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 657 [2021-03-25 07:51:36,648 INFO L480 AbstractCegarLoop]: Abstraction has has 765 places, 1160 transitions, 36692 flow [2021-03-25 07:51:36,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:36,648 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:36,649 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:36,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-03-25 07:51:36,649 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:36,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:36,649 INFO L82 PathProgramCache]: Analyzing trace with hash -140728875, now seen corresponding path program 6 times [2021-03-25 07:51:36,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:36,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395340955] [2021-03-25 07:51:36,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:36,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:36,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:36,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:36,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:36,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:36,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:36,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:36,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:36,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:36,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:36,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:36,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:36,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:36,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:36,691 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:36,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:36,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:36,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395340955] [2021-03-25 07:51:36,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:36,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:51:36,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317715941] [2021-03-25 07:51:36,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:51:36,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:36,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:51:36,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:51:36,694 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:36,695 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 765 places, 1160 transitions, 36692 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:36,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:36,695 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:36,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:37,945 INFO L129 PetriNetUnfolder]: 817/1757 cut-off events. [2021-03-25 07:51:37,945 INFO L130 PetriNetUnfolder]: For 192167/192193 co-relation queries the response was YES. [2021-03-25 07:51:37,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27955 conditions, 1757 events. 817/1757 cut-off events. For 192167/192193 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 13210 event pairs, 112 based on Foata normal form. 16/1772 useless extension candidates. Maximal degree in co-relation 27406. Up to 1473 conditions per place. [2021-03-25 07:51:37,994 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1052 selfloop transitions, 109 changer transitions 8/1174 dead transitions. [2021-03-25 07:51:37,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 771 places, 1174 transitions, 39546 flow [2021-03-25 07:51:37,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:51:37,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:51:37,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:51:37,995 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5021645021645021 [2021-03-25 07:51:37,995 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:51:37,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:51:37,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:37,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:51:37,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:37,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:37,996 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:37,996 INFO L185 Difference]: Start difference. First operand has 765 places, 1160 transitions, 36692 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:51:37,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 771 places, 1174 transitions, 39546 flow [2021-03-25 07:51:39,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 771 places, 1174 transitions, 39386 flow, removed 80 selfloop flow, removed 0 redundant places. [2021-03-25 07:51:39,625 INFO L241 Difference]: Finished difference. Result has 775 places, 1162 transitions, 36975 flow [2021-03-25 07:51:39,626 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=36532, PETRI_DIFFERENCE_MINUEND_PLACES=765, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1051, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=36975, PETRI_PLACES=775, PETRI_TRANSITIONS=1162} [2021-03-25 07:51:39,626 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 744 predicate places. [2021-03-25 07:51:39,626 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:39,626 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 775 places, 1162 transitions, 36975 flow [2021-03-25 07:51:39,626 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 775 places, 1162 transitions, 36975 flow [2021-03-25 07:51:39,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 775 places, 1162 transitions, 36975 flow [2021-03-25 07:51:40,152 INFO L129 PetriNetUnfolder]: 622/1409 cut-off events. [2021-03-25 07:51:40,153 INFO L130 PetriNetUnfolder]: For 130953/131026 co-relation queries the response was YES. [2021-03-25 07:51:40,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21628 conditions, 1409 events. 622/1409 cut-off events. For 130953/131026 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 10927 event pairs, 0 based on Foata normal form. 35/1443 useless extension candidates. Maximal degree in co-relation 21215. Up to 438 conditions per place. [2021-03-25 07:51:40,200 INFO L142 LiptonReduction]: Number of co-enabled transitions 1484 [2021-03-25 07:51:40,333 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:40,333 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:40,333 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 707 [2021-03-25 07:51:40,334 INFO L480 AbstractCegarLoop]: Abstraction has has 775 places, 1162 transitions, 36975 flow [2021-03-25 07:51:40,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:40,334 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:40,334 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:40,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-03-25 07:51:40,334 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:40,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:40,334 INFO L82 PathProgramCache]: Analyzing trace with hash -882575752, now seen corresponding path program 4 times [2021-03-25 07:51:40,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:40,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427141213] [2021-03-25 07:51:40,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:40,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:40,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:40,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:40,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:40,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:40,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:40,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:40,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:40,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:40,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:40,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:40,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:40,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:40,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:40,366 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:40,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:40,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427141213] [2021-03-25 07:51:40,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:40,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:51:40,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389962321] [2021-03-25 07:51:40,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:51:40,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:40,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:51:40,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:51:40,369 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:40,369 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 775 places, 1162 transitions, 36975 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:40,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:40,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:40,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:41,479 INFO L129 PetriNetUnfolder]: 823/1765 cut-off events. [2021-03-25 07:51:41,479 INFO L130 PetriNetUnfolder]: For 179348/179348 co-relation queries the response was YES. [2021-03-25 07:51:41,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28600 conditions, 1765 events. 823/1765 cut-off events. For 179348/179348 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 13230 event pairs, 7 based on Foata normal form. 1/1766 useless extension candidates. Maximal degree in co-relation 28184. Up to 1522 conditions per place. [2021-03-25 07:51:41,525 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1117 selfloop transitions, 43 changer transitions 3/1168 dead transitions. [2021-03-25 07:51:41,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 780 places, 1168 transitions, 39423 flow [2021-03-25 07:51:41,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:51:41,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:51:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:51:41,526 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.51010101010101 [2021-03-25 07:51:41,526 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:51:41,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:51:41,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:41,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:51:41,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:41,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:41,528 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:41,528 INFO L185 Difference]: Start difference. First operand has 775 places, 1162 transitions, 36975 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:51:41,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 780 places, 1168 transitions, 39423 flow [2021-03-25 07:51:43,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 776 places, 1168 transitions, 39203 flow, removed 49 selfloop flow, removed 4 redundant places. [2021-03-25 07:51:43,201 INFO L241 Difference]: Finished difference. Result has 778 places, 1160 transitions, 36829 flow [2021-03-25 07:51:43,201 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=36755, PETRI_DIFFERENCE_MINUEND_PLACES=771, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=36829, PETRI_PLACES=778, PETRI_TRANSITIONS=1160} [2021-03-25 07:51:43,201 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 747 predicate places. [2021-03-25 07:51:43,202 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:43,202 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 778 places, 1160 transitions, 36829 flow [2021-03-25 07:51:43,202 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 778 places, 1160 transitions, 36829 flow [2021-03-25 07:51:43,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 778 places, 1160 transitions, 36829 flow [2021-03-25 07:51:43,647 INFO L129 PetriNetUnfolder]: 621/1405 cut-off events. [2021-03-25 07:51:43,647 INFO L130 PetriNetUnfolder]: For 134259/134462 co-relation queries the response was YES. [2021-03-25 07:51:43,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21543 conditions, 1405 events. 621/1405 cut-off events. For 134259/134462 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 10881 event pairs, 1 based on Foata normal form. 45/1448 useless extension candidates. Maximal degree in co-relation 21128. Up to 437 conditions per place. [2021-03-25 07:51:43,701 INFO L142 LiptonReduction]: Number of co-enabled transitions 1476 [2021-03-25 07:51:43,861 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:43,861 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:43,861 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 659 [2021-03-25 07:51:43,862 INFO L480 AbstractCegarLoop]: Abstraction has has 778 places, 1160 transitions, 36829 flow [2021-03-25 07:51:43,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:43,862 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:43,862 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:43,862 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-03-25 07:51:43,862 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:43,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:43,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1469569306, now seen corresponding path program 5 times [2021-03-25 07:51:43,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:43,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766126846] [2021-03-25 07:51:43,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:43,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:43,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:43,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:43,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:43,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:43,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:43,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:43,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:43,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:43,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:43,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:43,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:43,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:43,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:43,899 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:43,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:43,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:43,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766126846] [2021-03-25 07:51:43,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:43,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:51:43,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820955376] [2021-03-25 07:51:43,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:51:43,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:43,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:51:43,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:51:43,902 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:43,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 778 places, 1160 transitions, 36829 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:43,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:43,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:43,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:45,151 INFO L129 PetriNetUnfolder]: 823/1769 cut-off events. [2021-03-25 07:51:45,151 INFO L130 PetriNetUnfolder]: For 186139/186148 co-relation queries the response was YES. [2021-03-25 07:51:45,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28761 conditions, 1769 events. 823/1769 cut-off events. For 186139/186148 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 13247 event pairs, 6 based on Foata normal form. 10/1779 useless extension candidates. Maximal degree in co-relation 28343. Up to 1492 conditions per place. [2021-03-25 07:51:45,192 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1070 selfloop transitions, 90 changer transitions 7/1172 dead transitions. [2021-03-25 07:51:45,192 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 784 places, 1172 transitions, 39784 flow [2021-03-25 07:51:45,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:51:45,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:51:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:51:45,193 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5043290043290043 [2021-03-25 07:51:45,193 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:51:45,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:51:45,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:45,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:51:45,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:45,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:45,194 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:45,194 INFO L185 Difference]: Start difference. First operand has 778 places, 1160 transitions, 36829 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:51:45,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 784 places, 1172 transitions, 39784 flow [2021-03-25 07:51:46,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 1172 transitions, 39655 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-03-25 07:51:46,957 INFO L241 Difference]: Finished difference. Result has 783 places, 1160 transitions, 37110 flow [2021-03-25 07:51:46,958 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=36704, PETRI_DIFFERENCE_MINUEND_PLACES=772, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1070, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=37110, PETRI_PLACES=783, PETRI_TRANSITIONS=1160} [2021-03-25 07:51:46,958 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 752 predicate places. [2021-03-25 07:51:46,958 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:46,958 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 783 places, 1160 transitions, 37110 flow [2021-03-25 07:51:46,958 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 783 places, 1160 transitions, 37110 flow [2021-03-25 07:51:46,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 783 places, 1160 transitions, 37110 flow [2021-03-25 07:51:47,525 INFO L129 PetriNetUnfolder]: 620/1398 cut-off events. [2021-03-25 07:51:47,525 INFO L130 PetriNetUnfolder]: For 134182/134297 co-relation queries the response was YES. [2021-03-25 07:51:47,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21712 conditions, 1398 events. 620/1398 cut-off events. For 134182/134297 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 10771 event pairs, 6 based on Foata normal form. 35/1431 useless extension candidates. Maximal degree in co-relation 21295. Up to 437 conditions per place. [2021-03-25 07:51:47,579 INFO L142 LiptonReduction]: Number of co-enabled transitions 1478 [2021-03-25 07:51:47,739 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:47,739 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:47,740 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 782 [2021-03-25 07:51:47,740 INFO L480 AbstractCegarLoop]: Abstraction has has 783 places, 1160 transitions, 37110 flow [2021-03-25 07:51:47,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:47,740 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:47,740 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:47,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-03-25 07:51:47,740 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:47,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1748883024, now seen corresponding path program 6 times [2021-03-25 07:51:47,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:47,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234907704] [2021-03-25 07:51:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:47,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:47,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:47,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:47,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:47,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:47,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:47,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:47,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:47,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:47,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:47,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:47,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:47,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:47,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:47,780 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:47,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:47,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:47,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234907704] [2021-03-25 07:51:47,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:47,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:51:47,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070247] [2021-03-25 07:51:47,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:51:47,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:47,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:51:47,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:51:47,783 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:47,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 783 places, 1160 transitions, 37110 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:47,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:47,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:47,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:48,958 INFO L129 PetriNetUnfolder]: 822/1785 cut-off events. [2021-03-25 07:51:48,959 INFO L130 PetriNetUnfolder]: For 187722/187722 co-relation queries the response was YES. [2021-03-25 07:51:48,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29009 conditions, 1785 events. 822/1785 cut-off events. For 187722/187722 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 13573 event pairs, 15 based on Foata normal form. 1/1786 useless extension candidates. Maximal degree in co-relation 28589. Up to 1447 conditions per place. [2021-03-25 07:51:49,004 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1068 selfloop transitions, 84 changer transitions 20/1177 dead transitions. [2021-03-25 07:51:49,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 789 places, 1177 transitions, 40134 flow [2021-03-25 07:51:49,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:51:49,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:51:49,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:51:49,006 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5064935064935064 [2021-03-25 07:51:49,006 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:51:49,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:51:49,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:49,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:51:49,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:49,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:49,006 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:49,006 INFO L185 Difference]: Start difference. First operand has 783 places, 1160 transitions, 37110 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:51:49,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 789 places, 1177 transitions, 40134 flow [2021-03-25 07:51:50,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 784 places, 1177 transitions, 39901 flow, removed 43 selfloop flow, removed 5 redundant places. [2021-03-25 07:51:50,728 INFO L241 Difference]: Finished difference. Result has 789 places, 1151 transitions, 36713 flow [2021-03-25 07:51:50,729 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=36893, PETRI_DIFFERENCE_MINUEND_PLACES=778, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1076, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=36713, PETRI_PLACES=789, PETRI_TRANSITIONS=1151} [2021-03-25 07:51:50,729 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 758 predicate places. [2021-03-25 07:51:50,729 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:50,729 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 789 places, 1151 transitions, 36713 flow [2021-03-25 07:51:50,729 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 789 places, 1151 transitions, 36713 flow [2021-03-25 07:51:50,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 789 places, 1151 transitions, 36713 flow [2021-03-25 07:51:51,222 INFO L129 PetriNetUnfolder]: 614/1401 cut-off events. [2021-03-25 07:51:51,222 INFO L130 PetriNetUnfolder]: For 135090/135245 co-relation queries the response was YES. [2021-03-25 07:51:51,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21516 conditions, 1401 events. 614/1401 cut-off events. For 135090/135245 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 10856 event pairs, 6 based on Foata normal form. 36/1435 useless extension candidates. Maximal degree in co-relation 21095. Up to 434 conditions per place. [2021-03-25 07:51:51,271 INFO L142 LiptonReduction]: Number of co-enabled transitions 1466 [2021-03-25 07:51:51,407 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:51,407 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:51,407 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 678 [2021-03-25 07:51:51,407 INFO L480 AbstractCegarLoop]: Abstraction has has 789 places, 1151 transitions, 36713 flow [2021-03-25 07:51:51,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:51,408 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:51,408 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:51,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-03-25 07:51:51,408 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:51,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:51,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1730448998, now seen corresponding path program 7 times [2021-03-25 07:51:51,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:51,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245022946] [2021-03-25 07:51:51,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:51,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:51,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:51,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:51,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:51,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:51,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:51,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:51,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:51,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:51,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:51,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:51,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:51,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:51,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:51,468 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:51,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:51,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:51,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245022946] [2021-03-25 07:51:51,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:51,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:51:51,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090913549] [2021-03-25 07:51:51,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:51:51,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:51,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:51:51,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:51:51,472 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:51,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 789 places, 1151 transitions, 36713 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:51,472 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:51,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:51,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:52,624 INFO L129 PetriNetUnfolder]: 811/1756 cut-off events. [2021-03-25 07:51:52,624 INFO L130 PetriNetUnfolder]: For 189676/189685 co-relation queries the response was YES. [2021-03-25 07:51:52,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28764 conditions, 1756 events. 811/1756 cut-off events. For 189676/189685 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 13194 event pairs, 14 based on Foata normal form. 10/1766 useless extension candidates. Maximal degree in co-relation 28340. Up to 1405 conditions per place. [2021-03-25 07:51:52,670 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1006 selfloop transitions, 132 changer transitions 21/1164 dead transitions. [2021-03-25 07:51:52,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 796 places, 1164 transitions, 39743 flow [2021-03-25 07:51:52,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:51:52,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:51:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:51:52,671 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5018939393939394 [2021-03-25 07:51:52,671 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:51:52,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:51:52,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:52,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:51:52,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:52,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:52,672 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:52,672 INFO L185 Difference]: Start difference. First operand has 789 places, 1151 transitions, 36713 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:51:52,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 796 places, 1164 transitions, 39743 flow [2021-03-25 07:51:54,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 784 places, 1164 transitions, 39396 flow, removed 74 selfloop flow, removed 12 redundant places. [2021-03-25 07:51:54,471 INFO L241 Difference]: Finished difference. Result has 790 places, 1137 transitions, 36479 flow [2021-03-25 07:51:54,471 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=36390, PETRI_DIFFERENCE_MINUEND_PLACES=777, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1019, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=36479, PETRI_PLACES=790, PETRI_TRANSITIONS=1137} [2021-03-25 07:51:54,471 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 759 predicate places. [2021-03-25 07:51:54,471 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:54,471 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 790 places, 1137 transitions, 36479 flow [2021-03-25 07:51:54,472 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 790 places, 1137 transitions, 36479 flow [2021-03-25 07:51:54,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 790 places, 1137 transitions, 36479 flow [2021-03-25 07:51:54,921 INFO L129 PetriNetUnfolder]: 607/1385 cut-off events. [2021-03-25 07:51:54,921 INFO L130 PetriNetUnfolder]: For 137744/138003 co-relation queries the response was YES. [2021-03-25 07:51:54,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21403 conditions, 1385 events. 607/1385 cut-off events. For 137744/138003 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 10636 event pairs, 6 based on Foata normal form. 43/1427 useless extension candidates. Maximal degree in co-relation 20983. Up to 427 conditions per place. [2021-03-25 07:51:54,976 INFO L142 LiptonReduction]: Number of co-enabled transitions 1448 [2021-03-25 07:51:55,119 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:55,119 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:55,119 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 648 [2021-03-25 07:51:55,119 INFO L480 AbstractCegarLoop]: Abstraction has has 790 places, 1137 transitions, 36479 flow [2021-03-25 07:51:55,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:55,119 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:55,119 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:55,120 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-03-25 07:51:55,120 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:55,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:55,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1064824273, now seen corresponding path program 7 times [2021-03-25 07:51:55,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:55,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896296050] [2021-03-25 07:51:55,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:55,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:55,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:55,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:55,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:55,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:55,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:55,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:55,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:55,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:55,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:51:55,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:55,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:55,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:55,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:55,163 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:55,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:55,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896296050] [2021-03-25 07:51:55,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:55,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:51:55,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710522188] [2021-03-25 07:51:55,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:51:55,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:55,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:51:55,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:51:55,166 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:55,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 790 places, 1137 transitions, 36479 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:55,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:55,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:55,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:51:56,408 INFO L129 PetriNetUnfolder]: 801/1757 cut-off events. [2021-03-25 07:51:56,409 INFO L130 PetriNetUnfolder]: For 199456/199469 co-relation queries the response was YES. [2021-03-25 07:51:56,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28535 conditions, 1757 events. 801/1757 cut-off events. For 199456/199469 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 13375 event pairs, 148 based on Foata normal form. 7/1763 useless extension candidates. Maximal degree in co-relation 27970. Up to 1469 conditions per place. [2021-03-25 07:51:56,450 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1061 selfloop transitions, 104 changer transitions 2/1172 dead transitions. [2021-03-25 07:51:56,450 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 797 places, 1172 transitions, 40403 flow [2021-03-25 07:51:56,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:51:56,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:51:56,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:51:56,451 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4981060606060606 [2021-03-25 07:51:56,451 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:51:56,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:51:56,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:51:56,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:51:56,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:56,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:56,452 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:56,452 INFO L185 Difference]: Start difference. First operand has 790 places, 1137 transitions, 36479 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:51:56,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 797 places, 1172 transitions, 40403 flow [2021-03-25 07:51:58,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 1172 transitions, 39802 flow, removed 57 selfloop flow, removed 19 redundant places. [2021-03-25 07:51:58,363 INFO L241 Difference]: Finished difference. Result has 784 places, 1166 transitions, 37676 flow [2021-03-25 07:51:58,363 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=35896, PETRI_DIFFERENCE_MINUEND_PLACES=771, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1039, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37676, PETRI_PLACES=784, PETRI_TRANSITIONS=1166} [2021-03-25 07:51:58,364 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 753 predicate places. [2021-03-25 07:51:58,364 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:51:58,364 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 784 places, 1166 transitions, 37676 flow [2021-03-25 07:51:58,364 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 784 places, 1166 transitions, 37676 flow [2021-03-25 07:51:58,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 784 places, 1166 transitions, 37676 flow [2021-03-25 07:51:58,819 INFO L129 PetriNetUnfolder]: 618/1420 cut-off events. [2021-03-25 07:51:58,820 INFO L130 PetriNetUnfolder]: For 141476/141689 co-relation queries the response was YES. [2021-03-25 07:51:58,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22056 conditions, 1420 events. 618/1420 cut-off events. For 141476/141689 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 11131 event pairs, 6 based on Foata normal form. 36/1455 useless extension candidates. Maximal degree in co-relation 21636. Up to 444 conditions per place. [2021-03-25 07:51:58,874 INFO L142 LiptonReduction]: Number of co-enabled transitions 1520 [2021-03-25 07:51:59,029 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:51:59,029 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:51:59,029 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 665 [2021-03-25 07:51:59,029 INFO L480 AbstractCegarLoop]: Abstraction has has 784 places, 1166 transitions, 37676 flow [2021-03-25 07:51:59,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:59,029 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:51:59,029 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:51:59,029 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-03-25 07:51:59,030 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:51:59,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:51:59,030 INFO L82 PathProgramCache]: Analyzing trace with hash -2017571732, now seen corresponding path program 8 times [2021-03-25 07:51:59,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:51:59,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285247297] [2021-03-25 07:51:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:51:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:51:59,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:59,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:59,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:59,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:59,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:59,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:59,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:59,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:59,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:59,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:51:59,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:59,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:51:59,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:51:59,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:51:59,079 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:51:59,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:51:59,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:51:59,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285247297] [2021-03-25 07:51:59,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:51:59,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:51:59,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145661104] [2021-03-25 07:51:59,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:51:59,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:51:59,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:51:59,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:51:59,081 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:51:59,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 784 places, 1166 transitions, 37676 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:51:59,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:51:59,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:51:59,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:00,262 INFO L129 PetriNetUnfolder]: 814/1772 cut-off events. [2021-03-25 07:52:00,262 INFO L130 PetriNetUnfolder]: For 195672/195681 co-relation queries the response was YES. [2021-03-25 07:52:00,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29294 conditions, 1772 events. 814/1772 cut-off events. For 195672/195681 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 13362 event pairs, 5 based on Foata normal form. 10/1782 useless extension candidates. Maximal degree in co-relation 28871. Up to 1511 conditions per place. [2021-03-25 07:52:00,308 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1101 selfloop transitions, 71 changer transitions 3/1180 dead transitions. [2021-03-25 07:52:00,308 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 790 places, 1180 transitions, 40874 flow [2021-03-25 07:52:00,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:52:00,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:52:00,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:52:00,324 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5043290043290043 [2021-03-25 07:52:00,324 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:52:00,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:52:00,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:00,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:52:00,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:00,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:00,325 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:00,325 INFO L185 Difference]: Start difference. First operand has 784 places, 1166 transitions, 37676 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:52:00,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 790 places, 1180 transitions, 40874 flow [2021-03-25 07:52:02,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 786 places, 1180 transitions, 40220 flow, removed 308 selfloop flow, removed 4 redundant places. [2021-03-25 07:52:02,308 INFO L241 Difference]: Finished difference. Result has 790 places, 1172 transitions, 37782 flow [2021-03-25 07:52:02,308 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37022, PETRI_DIFFERENCE_MINUEND_PLACES=780, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1097, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=37782, PETRI_PLACES=790, PETRI_TRANSITIONS=1172} [2021-03-25 07:52:02,309 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 759 predicate places. [2021-03-25 07:52:02,309 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:02,309 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 790 places, 1172 transitions, 37782 flow [2021-03-25 07:52:02,309 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 790 places, 1172 transitions, 37782 flow [2021-03-25 07:52:02,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 790 places, 1172 transitions, 37782 flow [2021-03-25 07:52:02,805 INFO L129 PetriNetUnfolder]: 620/1422 cut-off events. [2021-03-25 07:52:02,805 INFO L130 PetriNetUnfolder]: For 143943/144193 co-relation queries the response was YES. [2021-03-25 07:52:02,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22153 conditions, 1422 events. 620/1422 cut-off events. For 143943/144193 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 11115 event pairs, 5 based on Foata normal form. 43/1464 useless extension candidates. Maximal degree in co-relation 21731. Up to 444 conditions per place. [2021-03-25 07:52:02,863 INFO L142 LiptonReduction]: Number of co-enabled transitions 1520 [2021-03-25 07:52:03,012 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:03,012 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:03,012 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 703 [2021-03-25 07:52:03,013 INFO L480 AbstractCegarLoop]: Abstraction has has 790 places, 1172 transitions, 37782 flow [2021-03-25 07:52:03,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:03,013 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:03,013 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:03,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-03-25 07:52:03,013 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:03,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:03,013 INFO L82 PathProgramCache]: Analyzing trace with hash -527869080, now seen corresponding path program 9 times [2021-03-25 07:52:03,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:03,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371741939] [2021-03-25 07:52:03,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:03,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:03,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:03,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:03,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:03,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:03,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:03,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:03,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:03,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:03,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:52:03,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:03,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:03,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:03,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:03,077 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:03,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:03,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371741939] [2021-03-25 07:52:03,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:03,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:52:03,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403712592] [2021-03-25 07:52:03,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:52:03,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:03,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:52:03,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:52:03,081 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:03,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 790 places, 1172 transitions, 37782 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:03,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:03,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:03,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:04,344 INFO L129 PetriNetUnfolder]: 818/1785 cut-off events. [2021-03-25 07:52:04,344 INFO L130 PetriNetUnfolder]: For 200872/200872 co-relation queries the response was YES. [2021-03-25 07:52:04,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29690 conditions, 1785 events. 818/1785 cut-off events. For 200872/200872 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 13591 event pairs, 9 based on Foata normal form. 1/1786 useless extension candidates. Maximal degree in co-relation 29265. Up to 1448 conditions per place. [2021-03-25 07:52:04,392 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1051 selfloop transitions, 127 changer transitions 8/1191 dead transitions. [2021-03-25 07:52:04,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 797 places, 1191 transitions, 41510 flow [2021-03-25 07:52:04,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:52:04,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:52:04,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:52:04,393 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5018939393939394 [2021-03-25 07:52:04,393 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:52:04,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:52:04,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:04,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:52:04,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:04,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:04,394 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:04,394 INFO L185 Difference]: Start difference. First operand has 790 places, 1172 transitions, 37782 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:52:04,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 797 places, 1191 transitions, 41510 flow [2021-03-25 07:52:06,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 796 places, 1191 transitions, 40760 flow, removed 364 selfloop flow, removed 1 redundant places. [2021-03-25 07:52:06,436 INFO L241 Difference]: Finished difference. Result has 801 places, 1177 transitions, 38123 flow [2021-03-25 07:52:06,436 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37364, PETRI_DIFFERENCE_MINUEND_PLACES=789, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1046, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=38123, PETRI_PLACES=801, PETRI_TRANSITIONS=1177} [2021-03-25 07:52:06,437 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 770 predicate places. [2021-03-25 07:52:06,437 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:06,437 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 801 places, 1177 transitions, 38123 flow [2021-03-25 07:52:06,437 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 801 places, 1177 transitions, 38123 flow [2021-03-25 07:52:06,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 801 places, 1177 transitions, 38123 flow [2021-03-25 07:52:06,932 INFO L129 PetriNetUnfolder]: 622/1423 cut-off events. [2021-03-25 07:52:06,932 INFO L130 PetriNetUnfolder]: For 147372/147592 co-relation queries the response was YES. [2021-03-25 07:52:06,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22393 conditions, 1423 events. 622/1423 cut-off events. For 147372/147592 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 11124 event pairs, 1 based on Foata normal form. 36/1458 useless extension candidates. Maximal degree in co-relation 21965. Up to 444 conditions per place. [2021-03-25 07:52:06,994 INFO L142 LiptonReduction]: Number of co-enabled transitions 1524 [2021-03-25 07:52:07,166 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:07,167 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:07,167 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 730 [2021-03-25 07:52:07,167 INFO L480 AbstractCegarLoop]: Abstraction has has 801 places, 1177 transitions, 38123 flow [2021-03-25 07:52:07,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:07,167 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:07,167 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:07,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-03-25 07:52:07,167 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:07,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:07,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1153410065, now seen corresponding path program 8 times [2021-03-25 07:52:07,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:07,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032257814] [2021-03-25 07:52:07,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:07,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:07,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:07,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:07,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:07,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:07,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:07,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:07,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:07,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:07,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:52:07,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:07,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:07,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:07,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:07,217 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:07,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:07,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:07,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032257814] [2021-03-25 07:52:07,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:07,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:52:07,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561044057] [2021-03-25 07:52:07,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:52:07,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:07,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:52:07,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:52:07,221 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:07,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 801 places, 1177 transitions, 38123 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:07,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:07,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:07,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:08,490 INFO L129 PetriNetUnfolder]: 810/1775 cut-off events. [2021-03-25 07:52:08,491 INFO L130 PetriNetUnfolder]: For 211848/211861 co-relation queries the response was YES. [2021-03-25 07:52:08,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29148 conditions, 1775 events. 810/1775 cut-off events. For 211848/211861 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 13582 event pairs, 143 based on Foata normal form. 7/1781 useless extension candidates. Maximal degree in co-relation 28572. Up to 1493 conditions per place. [2021-03-25 07:52:08,536 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1090 selfloop transitions, 98 changer transitions 3/1196 dead transitions. [2021-03-25 07:52:08,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 807 places, 1196 transitions, 41479 flow [2021-03-25 07:52:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:52:08,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:52:08,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:52:08,540 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5021645021645021 [2021-03-25 07:52:08,540 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:52:08,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:52:08,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:08,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:52:08,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:08,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:08,541 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:08,541 INFO L185 Difference]: Start difference. First operand has 801 places, 1177 transitions, 38123 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:52:08,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 807 places, 1196 transitions, 41479 flow [2021-03-25 07:52:10,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 802 places, 1196 transitions, 41048 flow, removed 129 selfloop flow, removed 5 redundant places. [2021-03-25 07:52:10,513 INFO L241 Difference]: Finished difference. Result has 807 places, 1189 transitions, 38694 flow [2021-03-25 07:52:10,513 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37692, PETRI_DIFFERENCE_MINUEND_PLACES=796, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1081, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=38694, PETRI_PLACES=807, PETRI_TRANSITIONS=1189} [2021-03-25 07:52:10,514 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 776 predicate places. [2021-03-25 07:52:10,514 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:10,514 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 807 places, 1189 transitions, 38694 flow [2021-03-25 07:52:10,514 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 807 places, 1189 transitions, 38694 flow [2021-03-25 07:52:10,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 807 places, 1189 transitions, 38694 flow [2021-03-25 07:52:11,114 INFO L129 PetriNetUnfolder]: 627/1445 cut-off events. [2021-03-25 07:52:11,114 INFO L130 PetriNetUnfolder]: For 148743/148954 co-relation queries the response was YES. [2021-03-25 07:52:11,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22778 conditions, 1445 events. 627/1445 cut-off events. For 148743/148954 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 11439 event pairs, 0 based on Foata normal form. 33/1477 useless extension candidates. Maximal degree in co-relation 22345. Up to 447 conditions per place. [2021-03-25 07:52:11,172 INFO L142 LiptonReduction]: Number of co-enabled transitions 1534 [2021-03-25 07:52:11,339 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:11,340 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:11,340 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 826 [2021-03-25 07:52:11,340 INFO L480 AbstractCegarLoop]: Abstraction has has 807 places, 1189 transitions, 38694 flow [2021-03-25 07:52:11,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:11,340 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:11,340 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:11,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-03-25 07:52:11,341 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:11,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:11,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1417926388, now seen corresponding path program 10 times [2021-03-25 07:52:11,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:11,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238503540] [2021-03-25 07:52:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:11,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:11,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:11,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:11,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:11,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:11,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:11,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:11,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:11,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:11,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:52:11,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:11,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:11,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:11,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:11,383 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:11,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:11,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238503540] [2021-03-25 07:52:11,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:11,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:52:11,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276518942] [2021-03-25 07:52:11,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:52:11,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:11,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:52:11,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:52:11,385 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:11,386 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 807 places, 1189 transitions, 38694 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:11,386 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:11,386 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:11,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:12,662 INFO L129 PetriNetUnfolder]: 823/1799 cut-off events. [2021-03-25 07:52:12,662 INFO L130 PetriNetUnfolder]: For 210743/210752 co-relation queries the response was YES. [2021-03-25 07:52:12,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30222 conditions, 1799 events. 823/1799 cut-off events. For 210743/210752 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 13754 event pairs, 4 based on Foata normal form. 10/1809 useless extension candidates. Maximal degree in co-relation 29786. Up to 1482 conditions per place. [2021-03-25 07:52:12,715 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1038 selfloop transitions, 151 changer transitions 9/1203 dead transitions. [2021-03-25 07:52:12,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 814 places, 1203 transitions, 42108 flow [2021-03-25 07:52:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:52:12,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:52:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:52:12,716 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-03-25 07:52:12,716 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:52:12,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:52:12,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:12,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:52:12,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:12,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:12,717 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:12,717 INFO L185 Difference]: Start difference. First operand has 807 places, 1189 transitions, 38694 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:52:12,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 814 places, 1203 transitions, 42108 flow [2021-03-25 07:52:14,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 813 places, 1203 transitions, 41590 flow, removed 253 selfloop flow, removed 1 redundant places. [2021-03-25 07:52:14,812 INFO L241 Difference]: Finished difference. Result has 818 places, 1189 transitions, 38944 flow [2021-03-25 07:52:14,812 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=38176, PETRI_DIFFERENCE_MINUEND_PLACES=806, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1039, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=38944, PETRI_PLACES=818, PETRI_TRANSITIONS=1189} [2021-03-25 07:52:14,813 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 787 predicate places. [2021-03-25 07:52:14,813 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:14,813 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 818 places, 1189 transitions, 38944 flow [2021-03-25 07:52:14,813 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 818 places, 1189 transitions, 38944 flow [2021-03-25 07:52:14,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 818 places, 1189 transitions, 38944 flow [2021-03-25 07:52:15,295 INFO L129 PetriNetUnfolder]: 626/1452 cut-off events. [2021-03-25 07:52:15,295 INFO L130 PetriNetUnfolder]: For 155539/155726 co-relation queries the response was YES. [2021-03-25 07:52:15,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22991 conditions, 1452 events. 626/1452 cut-off events. For 155539/155726 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 11491 event pairs, 1 based on Foata normal form. 39/1491 useless extension candidates. Maximal degree in co-relation 22552. Up to 447 conditions per place. [2021-03-25 07:52:15,356 INFO L142 LiptonReduction]: Number of co-enabled transitions 1534 [2021-03-25 07:52:15,513 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:15,513 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:15,513 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 700 [2021-03-25 07:52:15,513 INFO L480 AbstractCegarLoop]: Abstraction has has 818 places, 1189 transitions, 38944 flow [2021-03-25 07:52:15,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:15,514 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:15,514 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:15,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-03-25 07:52:15,514 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:15,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:15,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1920130927, now seen corresponding path program 9 times [2021-03-25 07:52:15,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:15,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980256476] [2021-03-25 07:52:15,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:15,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:15,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:15,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:15,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:15,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:15,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:15,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:15,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:15,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:15,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:52:15,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:15,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:15,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:15,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:15,575 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:15,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:15,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980256476] [2021-03-25 07:52:15,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:15,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:52:15,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887659028] [2021-03-25 07:52:15,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:52:15,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:15,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:52:15,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:52:15,579 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:15,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 818 places, 1189 transitions, 38944 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:15,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:15,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:15,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:16,873 INFO L129 PetriNetUnfolder]: 813/1785 cut-off events. [2021-03-25 07:52:16,873 INFO L130 PetriNetUnfolder]: For 209811/209837 co-relation queries the response was YES. [2021-03-25 07:52:16,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29954 conditions, 1785 events. 813/1785 cut-off events. For 209811/209837 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 13687 event pairs, 3 based on Foata normal form. 16/1800 useless extension candidates. Maximal degree in co-relation 29365. Up to 1461 conditions per place. [2021-03-25 07:52:16,924 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1031 selfloop transitions, 162 changer transitions 7/1205 dead transitions. [2021-03-25 07:52:16,925 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 825 places, 1205 transitions, 42472 flow [2021-03-25 07:52:16,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:52:16,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:52:16,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:52:16,925 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4981060606060606 [2021-03-25 07:52:16,926 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:52:16,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:52:16,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:16,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:52:16,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:16,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:16,926 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:16,926 INFO L185 Difference]: Start difference. First operand has 818 places, 1189 transitions, 38944 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:52:16,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 825 places, 1205 transitions, 42472 flow [2021-03-25 07:52:19,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 819 places, 1205 transitions, 41951 flow, removed 139 selfloop flow, removed 6 redundant places. [2021-03-25 07:52:19,162 INFO L241 Difference]: Finished difference. Result has 822 places, 1194 transitions, 39483 flow [2021-03-25 07:52:19,162 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=38427, PETRI_DIFFERENCE_MINUEND_PLACES=812, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1032, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=39483, PETRI_PLACES=822, PETRI_TRANSITIONS=1194} [2021-03-25 07:52:19,162 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 791 predicate places. [2021-03-25 07:52:19,162 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:19,162 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 822 places, 1194 transitions, 39483 flow [2021-03-25 07:52:19,163 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 822 places, 1194 transitions, 39483 flow [2021-03-25 07:52:19,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 822 places, 1194 transitions, 39483 flow [2021-03-25 07:52:19,714 INFO L129 PetriNetUnfolder]: 627/1458 cut-off events. [2021-03-25 07:52:19,714 INFO L130 PetriNetUnfolder]: For 157109/157265 co-relation queries the response was YES. [2021-03-25 07:52:19,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23314 conditions, 1458 events. 627/1458 cut-off events. For 157109/157265 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 11551 event pairs, 0 based on Foata normal form. 35/1492 useless extension candidates. Maximal degree in co-relation 22873. Up to 451 conditions per place. [2021-03-25 07:52:19,761 INFO L142 LiptonReduction]: Number of co-enabled transitions 1548 [2021-03-25 07:52:19,917 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:19,917 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:19,917 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 755 [2021-03-25 07:52:19,917 INFO L480 AbstractCegarLoop]: Abstraction has has 822 places, 1194 transitions, 39483 flow [2021-03-25 07:52:19,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:19,917 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:19,917 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:19,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-03-25 07:52:19,918 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:19,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:19,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1492332600, now seen corresponding path program 11 times [2021-03-25 07:52:19,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:19,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802886246] [2021-03-25 07:52:19,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:19,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:19,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:19,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:19,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:19,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:19,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:19,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:19,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:19,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:19,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:52:19,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:19,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:19,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:19,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:19,977 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:19,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:19,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:19,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802886246] [2021-03-25 07:52:19,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:19,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:52:19,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524952766] [2021-03-25 07:52:19,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:52:19,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:19,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:52:19,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:52:19,980 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:19,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 822 places, 1194 transitions, 39483 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:19,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:19,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:19,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:21,242 INFO L129 PetriNetUnfolder]: 823/1806 cut-off events. [2021-03-25 07:52:21,243 INFO L130 PetriNetUnfolder]: For 218795/218795 co-relation queries the response was YES. [2021-03-25 07:52:21,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30836 conditions, 1806 events. 823/1806 cut-off events. For 218795/218795 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 13856 event pairs, 4 based on Foata normal form. 1/1807 useless extension candidates. Maximal degree in co-relation 30392. Up to 1527 conditions per place. [2021-03-25 07:52:21,293 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1109 selfloop transitions, 87 changer transitions 8/1209 dead transitions. [2021-03-25 07:52:21,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 829 places, 1209 transitions, 42968 flow [2021-03-25 07:52:21,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:52:21,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:52:21,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:52:21,294 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-03-25 07:52:21,294 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:52:21,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:52:21,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:21,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:52:21,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:21,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:21,295 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:21,295 INFO L185 Difference]: Start difference. First operand has 822 places, 1194 transitions, 39483 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:52:21,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 829 places, 1209 transitions, 42968 flow [2021-03-25 07:52:23,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 826 places, 1209 transitions, 42454 flow, removed 210 selfloop flow, removed 3 redundant places. [2021-03-25 07:52:23,484 INFO L241 Difference]: Finished difference. Result has 830 places, 1196 transitions, 39693 flow [2021-03-25 07:52:23,484 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=38981, PETRI_DIFFERENCE_MINUEND_PLACES=819, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=39693, PETRI_PLACES=830, PETRI_TRANSITIONS=1196} [2021-03-25 07:52:23,484 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 799 predicate places. [2021-03-25 07:52:23,484 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:23,485 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 830 places, 1196 transitions, 39693 flow [2021-03-25 07:52:23,485 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 830 places, 1196 transitions, 39693 flow [2021-03-25 07:52:23,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 830 places, 1196 transitions, 39693 flow [2021-03-25 07:52:23,987 INFO L129 PetriNetUnfolder]: 628/1472 cut-off events. [2021-03-25 07:52:23,987 INFO L130 PetriNetUnfolder]: For 159845/160060 co-relation queries the response was YES. [2021-03-25 07:52:24,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23442 conditions, 1472 events. 628/1472 cut-off events. For 159845/160060 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 11733 event pairs, 1 based on Foata normal form. 35/1506 useless extension candidates. Maximal degree in co-relation 22998. Up to 452 conditions per place. [2021-03-25 07:52:24,049 INFO L142 LiptonReduction]: Number of co-enabled transitions 1550 [2021-03-25 07:52:24,210 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:24,210 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:24,210 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 726 [2021-03-25 07:52:24,210 INFO L480 AbstractCegarLoop]: Abstraction has has 830 places, 1196 transitions, 39693 flow [2021-03-25 07:52:24,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:24,210 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:24,210 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:24,211 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-03-25 07:52:24,211 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:24,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:24,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1043861046, now seen corresponding path program 12 times [2021-03-25 07:52:24,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:24,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038387813] [2021-03-25 07:52:24,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:24,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:24,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:24,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:24,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:24,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:24,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:24,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:24,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:24,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:24,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:24,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:24,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:24,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:24,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:24,267 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:24,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:24,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038387813] [2021-03-25 07:52:24,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:24,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:52:24,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947225633] [2021-03-25 07:52:24,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:52:24,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:24,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:52:24,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:52:24,271 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:24,271 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 830 places, 1196 transitions, 39693 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:24,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:24,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:24,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:25,668 INFO L129 PetriNetUnfolder]: 820/1805 cut-off events. [2021-03-25 07:52:25,669 INFO L130 PetriNetUnfolder]: For 219229/219238 co-relation queries the response was YES. [2021-03-25 07:52:25,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30632 conditions, 1805 events. 820/1805 cut-off events. For 219229/219238 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 13882 event pairs, 6 based on Foata normal form. 10/1815 useless extension candidates. Maximal degree in co-relation 30185. Up to 1534 conditions per place. [2021-03-25 07:52:25,717 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1150 selfloop transitions, 45 changer transitions 5/1205 dead transitions. [2021-03-25 07:52:25,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 835 places, 1205 transitions, 42579 flow [2021-03-25 07:52:25,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:52:25,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:52:25,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:52:25,718 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.51010101010101 [2021-03-25 07:52:25,718 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:52:25,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:52:25,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:25,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:52:25,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:25,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:25,719 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:25,719 INFO L185 Difference]: Start difference. First operand has 830 places, 1196 transitions, 39693 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:52:25,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 835 places, 1205 transitions, 42579 flow [2021-03-25 07:52:27,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 830 places, 1205 transitions, 42014 flow, removed 231 selfloop flow, removed 5 redundant places. [2021-03-25 07:52:27,887 INFO L241 Difference]: Finished difference. Result has 834 places, 1195 transitions, 39283 flow [2021-03-25 07:52:27,888 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=39128, PETRI_DIFFERENCE_MINUEND_PLACES=825, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=39283, PETRI_PLACES=834, PETRI_TRANSITIONS=1195} [2021-03-25 07:52:27,888 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 803 predicate places. [2021-03-25 07:52:27,888 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:27,888 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 834 places, 1195 transitions, 39283 flow [2021-03-25 07:52:27,888 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 834 places, 1195 transitions, 39283 flow [2021-03-25 07:52:27,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 834 places, 1195 transitions, 39283 flow [2021-03-25 07:52:28,445 INFO L129 PetriNetUnfolder]: 627/1453 cut-off events. [2021-03-25 07:52:28,445 INFO L130 PetriNetUnfolder]: For 161314/161534 co-relation queries the response was YES. [2021-03-25 07:52:28,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23276 conditions, 1453 events. 627/1453 cut-off events. For 161314/161534 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 11540 event pairs, 1 based on Foata normal form. 35/1487 useless extension candidates. Maximal degree in co-relation 22828. Up to 447 conditions per place. [2021-03-25 07:52:28,506 INFO L142 LiptonReduction]: Number of co-enabled transitions 1546 [2021-03-25 07:52:28,669 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:28,669 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:28,669 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 781 [2021-03-25 07:52:28,670 INFO L480 AbstractCegarLoop]: Abstraction has has 834 places, 1195 transitions, 39283 flow [2021-03-25 07:52:28,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:28,670 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:28,670 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:28,670 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-03-25 07:52:28,670 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:28,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:28,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1924293449, now seen corresponding path program 10 times [2021-03-25 07:52:28,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:28,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735256163] [2021-03-25 07:52:28,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:28,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:28,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:28,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:28,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:28,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:28,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:28,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:28,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:28,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:28,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:52:28,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:28,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:28,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:28,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:28,712 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:28,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:28,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:28,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735256163] [2021-03-25 07:52:28,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:28,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:52:28,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750558623] [2021-03-25 07:52:28,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:52:28,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:28,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:52:28,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:52:28,715 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:28,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 834 places, 1195 transitions, 39283 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:28,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:28,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:28,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:29,966 INFO L129 PetriNetUnfolder]: 811/1785 cut-off events. [2021-03-25 07:52:29,966 INFO L130 PetriNetUnfolder]: For 209244/209254 co-relation queries the response was YES. [2021-03-25 07:52:30,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30120 conditions, 1785 events. 811/1785 cut-off events. For 209244/209254 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 13752 event pairs, 7 based on Foata normal form. 5/1789 useless extension candidates. Maximal degree in co-relation 29521. Up to 1459 conditions per place. [2021-03-25 07:52:30,020 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1072 selfloop transitions, 119 changer transitions 14/1210 dead transitions. [2021-03-25 07:52:30,020 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 841 places, 1210 transitions, 42778 flow [2021-03-25 07:52:30,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:52:30,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:52:30,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:52:30,032 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-03-25 07:52:30,033 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:52:30,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:52:30,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:30,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:52:30,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:30,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:30,034 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:30,034 INFO L185 Difference]: Start difference. First operand has 834 places, 1195 transitions, 39283 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:52:30,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 841 places, 1210 transitions, 42778 flow [2021-03-25 07:52:32,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 836 places, 1210 transitions, 42607 flow, removed 40 selfloop flow, removed 5 redundant places. [2021-03-25 07:52:32,359 INFO L241 Difference]: Finished difference. Result has 841 places, 1191 transitions, 39547 flow [2021-03-25 07:52:32,359 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=39112, PETRI_DIFFERENCE_MINUEND_PLACES=829, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1077, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=39547, PETRI_PLACES=841, PETRI_TRANSITIONS=1191} [2021-03-25 07:52:32,359 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 810 predicate places. [2021-03-25 07:52:32,359 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:32,359 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 841 places, 1191 transitions, 39547 flow [2021-03-25 07:52:32,360 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 841 places, 1191 transitions, 39547 flow [2021-03-25 07:52:32,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 841 places, 1191 transitions, 39547 flow [2021-03-25 07:52:32,853 INFO L129 PetriNetUnfolder]: 625/1455 cut-off events. [2021-03-25 07:52:32,853 INFO L130 PetriNetUnfolder]: For 160343/160505 co-relation queries the response was YES. [2021-03-25 07:52:32,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23455 conditions, 1455 events. 625/1455 cut-off events. For 160343/160505 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 11629 event pairs, 1 based on Foata normal form. 30/1484 useless extension candidates. Maximal degree in co-relation 23004. Up to 448 conditions per place. [2021-03-25 07:52:32,915 INFO L142 LiptonReduction]: Number of co-enabled transitions 1542 [2021-03-25 07:52:33,084 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:33,085 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:33,085 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 726 [2021-03-25 07:52:33,085 INFO L480 AbstractCegarLoop]: Abstraction has has 841 places, 1191 transitions, 39547 flow [2021-03-25 07:52:33,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:33,085 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:33,085 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:33,085 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-03-25 07:52:33,085 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:33,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:33,085 INFO L82 PathProgramCache]: Analyzing trace with hash -118608358, now seen corresponding path program 13 times [2021-03-25 07:52:33,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:33,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768030114] [2021-03-25 07:52:33,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:33,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:33,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:33,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:33,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:33,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:33,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:33,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:33,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:33,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:33,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:52:33,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:33,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:33,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:33,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:33,127 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:33,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:33,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:33,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768030114] [2021-03-25 07:52:33,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:33,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:52:33,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560738082] [2021-03-25 07:52:33,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:52:33,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:33,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:52:33,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:52:33,130 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:33,130 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 841 places, 1191 transitions, 39547 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:33,130 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:33,130 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:33,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:34,415 INFO L129 PetriNetUnfolder]: 816/1793 cut-off events. [2021-03-25 07:52:34,415 INFO L130 PetriNetUnfolder]: For 219456/219456 co-relation queries the response was YES. [2021-03-25 07:52:34,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30745 conditions, 1793 events. 816/1793 cut-off events. For 219456/219456 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 13797 event pairs, 5 based on Foata normal form. 1/1794 useless extension candidates. Maximal degree in co-relation 30291. Up to 1468 conditions per place. [2021-03-25 07:52:34,467 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1027 selfloop transitions, 159 changer transitions 10/1201 dead transitions. [2021-03-25 07:52:34,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 848 places, 1201 transitions, 42699 flow [2021-03-25 07:52:34,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:52:34,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:52:34,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:52:34,468 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4981060606060606 [2021-03-25 07:52:34,468 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:52:34,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:52:34,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:34,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:52:34,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:34,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:34,469 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:34,469 INFO L185 Difference]: Start difference. First operand has 841 places, 1191 transitions, 39547 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:52:34,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 848 places, 1201 transitions, 42699 flow [2021-03-25 07:52:36,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 841 places, 1201 transitions, 42249 flow, removed 134 selfloop flow, removed 7 redundant places. [2021-03-25 07:52:36,809 INFO L241 Difference]: Finished difference. Result has 846 places, 1187 transitions, 39594 flow [2021-03-25 07:52:36,810 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=39097, PETRI_DIFFERENCE_MINUEND_PLACES=834, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1032, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=39594, PETRI_PLACES=846, PETRI_TRANSITIONS=1187} [2021-03-25 07:52:36,810 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 815 predicate places. [2021-03-25 07:52:36,810 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:36,810 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 846 places, 1187 transitions, 39594 flow [2021-03-25 07:52:36,810 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 846 places, 1187 transitions, 39594 flow [2021-03-25 07:52:36,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 846 places, 1187 transitions, 39594 flow [2021-03-25 07:52:37,397 INFO L129 PetriNetUnfolder]: 622/1452 cut-off events. [2021-03-25 07:52:37,397 INFO L130 PetriNetUnfolder]: For 163674/163868 co-relation queries the response was YES. [2021-03-25 07:52:37,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23579 conditions, 1452 events. 622/1452 cut-off events. For 163674/163868 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 11622 event pairs, 1 based on Foata normal form. 40/1491 useless extension candidates. Maximal degree in co-relation 23123. Up to 444 conditions per place. [2021-03-25 07:52:37,449 INFO L142 LiptonReduction]: Number of co-enabled transitions 1546 [2021-03-25 07:52:37,597 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:37,597 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:37,598 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 788 [2021-03-25 07:52:37,598 INFO L480 AbstractCegarLoop]: Abstraction has has 846 places, 1187 transitions, 39594 flow [2021-03-25 07:52:37,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:37,598 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:37,598 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:37,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-03-25 07:52:37,598 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:37,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:37,598 INFO L82 PathProgramCache]: Analyzing trace with hash -2138810038, now seen corresponding path program 14 times [2021-03-25 07:52:37,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:37,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025998482] [2021-03-25 07:52:37,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:37,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:37,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:37,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:37,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:37,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:37,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:37,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:37,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:37,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:37,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:52:37,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:37,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:37,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:37,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:37,642 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:37,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:37,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025998482] [2021-03-25 07:52:37,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:37,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:52:37,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886880502] [2021-03-25 07:52:37,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:52:37,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:37,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:52:37,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:52:37,645 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:37,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 846 places, 1187 transitions, 39594 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:37,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:37,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:37,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:38,906 INFO L129 PetriNetUnfolder]: 813/1795 cut-off events. [2021-03-25 07:52:38,907 INFO L130 PetriNetUnfolder]: For 222131/222131 co-relation queries the response was YES. [2021-03-25 07:52:38,954 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30827 conditions, 1795 events. 813/1795 cut-off events. For 222131/222131 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 13796 event pairs, 7 based on Foata normal form. 1/1796 useless extension candidates. Maximal degree in co-relation 30368. Up to 1503 conditions per place. [2021-03-25 07:52:38,964 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1102 selfloop transitions, 88 changer transitions 5/1200 dead transitions. [2021-03-25 07:52:38,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 853 places, 1200 transitions, 42695 flow [2021-03-25 07:52:38,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:52:38,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:52:38,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:52:38,965 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-03-25 07:52:38,965 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:52:38,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:52:38,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:38,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:52:38,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:38,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:38,966 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:38,966 INFO L185 Difference]: Start difference. First operand has 846 places, 1187 transitions, 39594 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:52:38,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 853 places, 1200 transitions, 42695 flow [2021-03-25 07:52:41,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 847 places, 1200 transitions, 42210 flow, removed 119 selfloop flow, removed 6 redundant places. [2021-03-25 07:52:41,138 INFO L241 Difference]: Finished difference. Result has 853 places, 1190 transitions, 39697 flow [2021-03-25 07:52:41,139 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=39214, PETRI_DIFFERENCE_MINUEND_PLACES=840, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1099, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=39697, PETRI_PLACES=853, PETRI_TRANSITIONS=1190} [2021-03-25 07:52:41,139 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 822 predicate places. [2021-03-25 07:52:41,139 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:41,140 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 853 places, 1190 transitions, 39697 flow [2021-03-25 07:52:41,140 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 853 places, 1190 transitions, 39697 flow [2021-03-25 07:52:41,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 853 places, 1190 transitions, 39697 flow [2021-03-25 07:52:41,777 INFO L129 PetriNetUnfolder]: 622/1454 cut-off events. [2021-03-25 07:52:41,777 INFO L130 PetriNetUnfolder]: For 167663/167877 co-relation queries the response was YES. [2021-03-25 07:52:41,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23669 conditions, 1454 events. 622/1454 cut-off events. For 167663/167877 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 11667 event pairs, 0 based on Foata normal form. 31/1485 useless extension candidates. Maximal degree in co-relation 23208. Up to 444 conditions per place. [2021-03-25 07:52:41,838 INFO L142 LiptonReduction]: Number of co-enabled transitions 1550 [2021-03-25 07:52:42,004 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:42,005 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:42,005 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 866 [2021-03-25 07:52:42,005 INFO L480 AbstractCegarLoop]: Abstraction has has 853 places, 1190 transitions, 39697 flow [2021-03-25 07:52:42,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:42,005 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:42,005 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:42,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-03-25 07:52:42,005 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:42,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:42,005 INFO L82 PathProgramCache]: Analyzing trace with hash 942587572, now seen corresponding path program 15 times [2021-03-25 07:52:42,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:42,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442512191] [2021-03-25 07:52:42,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:42,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:42,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:42,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:42,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:42,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:42,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:42,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:42,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:42,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:42,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:42,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:42,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:42,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:42,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:42,041 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:42,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:42,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:42,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442512191] [2021-03-25 07:52:42,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:42,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:52:42,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896680060] [2021-03-25 07:52:42,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:52:42,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:42,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:52:42,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:52:42,044 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:42,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 853 places, 1190 transitions, 39697 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:42,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:42,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:42,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:43,294 INFO L129 PetriNetUnfolder]: 812/1797 cut-off events. [2021-03-25 07:52:43,295 INFO L130 PetriNetUnfolder]: For 228475/228484 co-relation queries the response was YES. [2021-03-25 07:52:43,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30856 conditions, 1797 events. 812/1797 cut-off events. For 228475/228484 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 13834 event pairs, 9 based on Foata normal form. 10/1807 useless extension candidates. Maximal degree in co-relation 30392. Up to 1484 conditions per place. [2021-03-25 07:52:43,346 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1113 selfloop transitions, 76 changer transitions 6/1200 dead transitions. [2021-03-25 07:52:43,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 859 places, 1200 transitions, 42623 flow [2021-03-25 07:52:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:52:43,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:52:43,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:52:43,347 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5064935064935064 [2021-03-25 07:52:43,348 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:52:43,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:52:43,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:43,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:52:43,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:43,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:43,348 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:43,349 INFO L185 Difference]: Start difference. First operand has 853 places, 1190 transitions, 39697 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:52:43,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 859 places, 1200 transitions, 42623 flow [2021-03-25 07:52:45,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 854 places, 1200 transitions, 42388 flow, removed 46 selfloop flow, removed 5 redundant places. [2021-03-25 07:52:45,878 INFO L241 Difference]: Finished difference. Result has 858 places, 1188 transitions, 39707 flow [2021-03-25 07:52:45,879 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=39462, PETRI_DIFFERENCE_MINUEND_PLACES=848, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=39707, PETRI_PLACES=858, PETRI_TRANSITIONS=1188} [2021-03-25 07:52:45,879 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 827 predicate places. [2021-03-25 07:52:45,879 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:45,879 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 858 places, 1188 transitions, 39707 flow [2021-03-25 07:52:45,879 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 858 places, 1188 transitions, 39707 flow [2021-03-25 07:52:45,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 858 places, 1188 transitions, 39707 flow [2021-03-25 07:52:46,527 INFO L129 PetriNetUnfolder]: 621/1455 cut-off events. [2021-03-25 07:52:46,527 INFO L130 PetriNetUnfolder]: For 170135/170347 co-relation queries the response was YES. [2021-03-25 07:52:46,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23708 conditions, 1455 events. 621/1455 cut-off events. For 170135/170347 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 11735 event pairs, 0 based on Foata normal form. 31/1485 useless extension candidates. Maximal degree in co-relation 23244. Up to 443 conditions per place. [2021-03-25 07:52:46,591 INFO L142 LiptonReduction]: Number of co-enabled transitions 1550 [2021-03-25 07:52:46,745 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:46,745 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:46,745 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 866 [2021-03-25 07:52:46,746 INFO L480 AbstractCegarLoop]: Abstraction has has 858 places, 1188 transitions, 39707 flow [2021-03-25 07:52:46,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:46,746 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:46,746 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:46,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-03-25 07:52:46,746 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:46,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:46,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1265069358, now seen corresponding path program 16 times [2021-03-25 07:52:46,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:46,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792954902] [2021-03-25 07:52:46,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:46,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:46,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:46,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:46,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:46,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:46,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:46,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:46,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:46,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:46,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:52:46,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:46,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:46,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:46,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:46,788 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:46,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:46,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:46,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792954902] [2021-03-25 07:52:46,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:46,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:52:46,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468402926] [2021-03-25 07:52:46,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:52:46,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:46,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:52:46,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:52:46,791 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:46,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 858 places, 1188 transitions, 39707 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:46,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:46,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:46,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:48,107 INFO L129 PetriNetUnfolder]: 811/1792 cut-off events. [2021-03-25 07:52:48,108 INFO L130 PetriNetUnfolder]: For 229029/229029 co-relation queries the response was YES. [2021-03-25 07:52:48,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30927 conditions, 1792 events. 811/1792 cut-off events. For 229029/229029 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 13812 event pairs, 9 based on Foata normal form. 1/1793 useless extension candidates. Maximal degree in co-relation 30460. Up to 1454 conditions per place. [2021-03-25 07:52:48,181 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1060 selfloop transitions, 127 changer transitions 6/1198 dead transitions. [2021-03-25 07:52:48,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 865 places, 1198 transitions, 42641 flow [2021-03-25 07:52:48,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:52:48,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:52:48,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:52:48,182 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5018939393939394 [2021-03-25 07:52:48,182 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:52:48,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:52:48,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:48,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:52:48,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:48,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:48,183 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:48,183 INFO L185 Difference]: Start difference. First operand has 858 places, 1188 transitions, 39707 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:52:48,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 865 places, 1198 transitions, 42641 flow [2021-03-25 07:52:50,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 856 places, 1198 transitions, 42339 flow, removed 47 selfloop flow, removed 9 redundant places. [2021-03-25 07:52:50,671 INFO L241 Difference]: Finished difference. Result has 860 places, 1186 transitions, 39846 flow [2021-03-25 07:52:50,671 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=39411, PETRI_DIFFERENCE_MINUEND_PLACES=849, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1061, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=39846, PETRI_PLACES=860, PETRI_TRANSITIONS=1186} [2021-03-25 07:52:50,672 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 829 predicate places. [2021-03-25 07:52:50,672 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:50,672 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 860 places, 1186 transitions, 39846 flow [2021-03-25 07:52:50,672 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 860 places, 1186 transitions, 39846 flow [2021-03-25 07:52:50,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 860 places, 1186 transitions, 39846 flow [2021-03-25 07:52:51,184 INFO L129 PetriNetUnfolder]: 620/1453 cut-off events. [2021-03-25 07:52:51,185 INFO L130 PetriNetUnfolder]: For 172949/173145 co-relation queries the response was YES. [2021-03-25 07:52:51,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23798 conditions, 1453 events. 620/1453 cut-off events. For 172949/173145 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 11629 event pairs, 0 based on Foata normal form. 38/1489 useless extension candidates. Maximal degree in co-relation 23333. Up to 443 conditions per place. [2021-03-25 07:52:51,248 INFO L142 LiptonReduction]: Number of co-enabled transitions 1550 [2021-03-25 07:52:51,417 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:51,417 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:51,417 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 745 [2021-03-25 07:52:51,417 INFO L480 AbstractCegarLoop]: Abstraction has has 860 places, 1186 transitions, 39846 flow [2021-03-25 07:52:51,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:51,418 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:51,418 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:51,418 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-03-25 07:52:51,418 INFO L428 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:51,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:51,418 INFO L82 PathProgramCache]: Analyzing trace with hash -649405042, now seen corresponding path program 17 times [2021-03-25 07:52:51,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:51,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197674120] [2021-03-25 07:52:51,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:51,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:51,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:51,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:51,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:51,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:51,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:51,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:51,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:51,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:51,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:51,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:51,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:51,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:51,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:51,464 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:51,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:51,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:51,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197674120] [2021-03-25 07:52:51,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:51,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:52:51,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682437539] [2021-03-25 07:52:51,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:52:51,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:51,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:52:51,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:52:51,467 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:51,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 860 places, 1186 transitions, 39846 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:51,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:51,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:51,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:52,817 INFO L129 PetriNetUnfolder]: 810/1798 cut-off events. [2021-03-25 07:52:52,817 INFO L130 PetriNetUnfolder]: For 231858/231858 co-relation queries the response was YES. [2021-03-25 07:52:52,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31107 conditions, 1798 events. 810/1798 cut-off events. For 231858/231858 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 13904 event pairs, 8 based on Foata normal form. 1/1799 useless extension candidates. Maximal degree in co-relation 30639. Up to 1445 conditions per place. [2021-03-25 07:52:52,869 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1033 selfloop transitions, 121 changer transitions 38/1197 dead transitions. [2021-03-25 07:52:52,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 867 places, 1197 transitions, 42952 flow [2021-03-25 07:52:52,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:52:52,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:52:52,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:52:52,870 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-03-25 07:52:52,870 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:52:52,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:52:52,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:52,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:52:52,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:52,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:52,871 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:52,871 INFO L185 Difference]: Start difference. First operand has 860 places, 1186 transitions, 39846 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:52:52,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 867 places, 1197 transitions, 42952 flow [2021-03-25 07:52:55,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 859 places, 1197 transitions, 42571 flow, removed 58 selfloop flow, removed 8 redundant places. [2021-03-25 07:52:55,354 INFO L241 Difference]: Finished difference. Result has 865 places, 1154 transitions, 38197 flow [2021-03-25 07:52:55,355 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=39479, PETRI_DIFFERENCE_MINUEND_PLACES=852, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1065, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=38197, PETRI_PLACES=865, PETRI_TRANSITIONS=1154} [2021-03-25 07:52:55,355 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 834 predicate places. [2021-03-25 07:52:55,355 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:55,355 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 865 places, 1154 transitions, 38197 flow [2021-03-25 07:52:55,355 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 865 places, 1154 transitions, 38197 flow [2021-03-25 07:52:55,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 865 places, 1154 transitions, 38197 flow [2021-03-25 07:52:55,903 INFO L129 PetriNetUnfolder]: 606/1414 cut-off events. [2021-03-25 07:52:55,903 INFO L130 PetriNetUnfolder]: For 165698/165780 co-relation queries the response was YES. [2021-03-25 07:52:55,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22923 conditions, 1414 events. 606/1414 cut-off events. For 165698/165780 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 11245 event pairs, 1 based on Foata normal form. 34/1447 useless extension candidates. Maximal degree in co-relation 22455. Up to 426 conditions per place. [2021-03-25 07:52:55,964 INFO L142 LiptonReduction]: Number of co-enabled transitions 1498 [2021-03-25 07:52:56,092 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:52:56,092 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:52:56,092 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 737 [2021-03-25 07:52:56,093 INFO L480 AbstractCegarLoop]: Abstraction has has 865 places, 1154 transitions, 38197 flow [2021-03-25 07:52:56,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:56,093 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:52:56,093 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:52:56,093 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-03-25 07:52:56,093 INFO L428 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:52:56,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:52:56,093 INFO L82 PathProgramCache]: Analyzing trace with hash -224503087, now seen corresponding path program 11 times [2021-03-25 07:52:56,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:52:56,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420894599] [2021-03-25 07:52:56,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:52:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:52:56,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:56,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:56,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:56,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:56,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:56,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:56,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:56,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:56,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:56,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:52:56,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:56,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:52:56,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:52:56,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:52:56,137 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:52:56,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:52:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:52:56,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420894599] [2021-03-25 07:52:56,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:52:56,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:52:56,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965201749] [2021-03-25 07:52:56,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:52:56,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:52:56,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:52:56,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:52:56,140 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:52:56,141 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 865 places, 1154 transitions, 38197 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:56,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:52:56,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:52:56,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:52:57,394 INFO L129 PetriNetUnfolder]: 782/1726 cut-off events. [2021-03-25 07:52:57,394 INFO L130 PetriNetUnfolder]: For 215307/215317 co-relation queries the response was YES. [2021-03-25 07:52:57,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29278 conditions, 1726 events. 782/1726 cut-off events. For 215307/215317 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 13214 event pairs, 4 based on Foata normal form. 5/1730 useless extension candidates. Maximal degree in co-relation 28658. Up to 1449 conditions per place. [2021-03-25 07:52:57,448 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1067 selfloop transitions, 87 changer transitions 8/1167 dead transitions. [2021-03-25 07:52:57,448 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 872 places, 1167 transitions, 41399 flow [2021-03-25 07:52:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:52:57,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:52:57,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:52:57,449 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4981060606060606 [2021-03-25 07:52:57,449 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:52:57,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:52:57,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:52:57,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:52:57,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:57,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:57,450 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:52:57,450 INFO L185 Difference]: Start difference. First operand has 865 places, 1154 transitions, 38197 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:52:57,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 872 places, 1167 transitions, 41399 flow [2021-03-25 07:52:59,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 845 places, 1167 transitions, 40806 flow, removed 19 selfloop flow, removed 27 redundant places. [2021-03-25 07:52:59,734 INFO L241 Difference]: Finished difference. Result has 851 places, 1155 transitions, 37964 flow [2021-03-25 07:52:59,734 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37622, PETRI_DIFFERENCE_MINUEND_PLACES=838, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1067, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37964, PETRI_PLACES=851, PETRI_TRANSITIONS=1155} [2021-03-25 07:52:59,734 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 820 predicate places. [2021-03-25 07:52:59,734 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:52:59,734 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 851 places, 1155 transitions, 37964 flow [2021-03-25 07:52:59,735 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 851 places, 1155 transitions, 37964 flow [2021-03-25 07:52:59,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 851 places, 1155 transitions, 37964 flow [2021-03-25 07:53:00,232 INFO L129 PetriNetUnfolder]: 605/1415 cut-off events. [2021-03-25 07:53:00,232 INFO L130 PetriNetUnfolder]: For 165861/165925 co-relation queries the response was YES. [2021-03-25 07:53:00,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22847 conditions, 1415 events. 605/1415 cut-off events. For 165861/165925 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 11282 event pairs, 0 based on Foata normal form. 30/1444 useless extension candidates. Maximal degree in co-relation 22386. Up to 424 conditions per place. [2021-03-25 07:53:00,294 INFO L142 LiptonReduction]: Number of co-enabled transitions 1500 [2021-03-25 07:53:00,452 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:00,452 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:53:00,453 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 719 [2021-03-25 07:53:00,453 INFO L480 AbstractCegarLoop]: Abstraction has has 851 places, 1155 transitions, 37964 flow [2021-03-25 07:53:00,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:00,453 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:00,453 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:00,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-03-25 07:53:00,453 INFO L428 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:00,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:00,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1157129928, now seen corresponding path program 18 times [2021-03-25 07:53:00,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:00,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236428529] [2021-03-25 07:53:00,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:00,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:00,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:00,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:00,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:00,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:00,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:00,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:00,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:00,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:00,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:00,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:00,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:00,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:00,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:00,505 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:00,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:00,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:00,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236428529] [2021-03-25 07:53:00,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:00,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:53:00,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984912027] [2021-03-25 07:53:00,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:53:00,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:00,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:53:00,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:53:00,509 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:53:00,509 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 851 places, 1155 transitions, 37964 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:00,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:00,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:53:00,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:01,773 INFO L129 PetriNetUnfolder]: 790/1751 cut-off events. [2021-03-25 07:53:01,773 INFO L130 PetriNetUnfolder]: For 211600/211600 co-relation queries the response was YES. [2021-03-25 07:53:01,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29665 conditions, 1751 events. 790/1751 cut-off events. For 211600/211600 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 13479 event pairs, 8 based on Foata normal form. 1/1752 useless extension candidates. Maximal degree in co-relation 29201. Up to 1428 conditions per place. [2021-03-25 07:53:01,824 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1043 selfloop transitions, 108 changer transitions 10/1166 dead transitions. [2021-03-25 07:53:01,824 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 858 places, 1166 transitions, 40690 flow [2021-03-25 07:53:01,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:53:01,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:53:01,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:53:01,825 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5018939393939394 [2021-03-25 07:53:01,825 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:53:01,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:53:01,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:01,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:53:01,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:01,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:01,826 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:01,826 INFO L185 Difference]: Start difference. First operand has 851 places, 1155 transitions, 37964 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:53:01,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 858 places, 1166 transitions, 40690 flow [2021-03-25 07:53:04,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 852 places, 1166 transitions, 40361 flow, removed 89 selfloop flow, removed 6 redundant places. [2021-03-25 07:53:04,408 INFO L241 Difference]: Finished difference. Result has 855 places, 1150 transitions, 37994 flow [2021-03-25 07:53:04,408 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37637, PETRI_DIFFERENCE_MINUEND_PLACES=845, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1049, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37994, PETRI_PLACES=855, PETRI_TRANSITIONS=1150} [2021-03-25 07:53:04,408 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 824 predicate places. [2021-03-25 07:53:04,408 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:04,409 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 855 places, 1150 transitions, 37994 flow [2021-03-25 07:53:04,409 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 855 places, 1150 transitions, 37994 flow [2021-03-25 07:53:04,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 855 places, 1150 transitions, 37994 flow [2021-03-25 07:53:04,883 INFO L129 PetriNetUnfolder]: 603/1413 cut-off events. [2021-03-25 07:53:04,884 INFO L130 PetriNetUnfolder]: For 164451/164512 co-relation queries the response was YES. [2021-03-25 07:53:04,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22864 conditions, 1413 events. 603/1413 cut-off events. For 164451/164512 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 11311 event pairs, 0 based on Foata normal form. 25/1437 useless extension candidates. Maximal degree in co-relation 22402. Up to 423 conditions per place. [2021-03-25 07:53:04,943 INFO L142 LiptonReduction]: Number of co-enabled transitions 1506 [2021-03-25 07:53:05,094 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:05,094 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:53:05,095 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 687 [2021-03-25 07:53:05,095 INFO L480 AbstractCegarLoop]: Abstraction has has 855 places, 1150 transitions, 37994 flow [2021-03-25 07:53:05,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:05,095 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:05,095 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:05,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-03-25 07:53:05,095 INFO L428 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:05,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:05,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1713908083, now seen corresponding path program 12 times [2021-03-25 07:53:05,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:05,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964761475] [2021-03-25 07:53:05,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:05,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:05,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:05,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:05,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:05,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:05,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:05,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:05,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:05,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:05,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:05,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:05,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:05,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:05,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:05,141 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:05,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:05,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:05,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964761475] [2021-03-25 07:53:05,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:05,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:53:05,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946872038] [2021-03-25 07:53:05,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:53:05,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:05,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:53:05,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:53:05,144 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:53:05,144 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 855 places, 1150 transitions, 37994 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:05,144 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:05,144 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:53:05,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:06,364 INFO L129 PetriNetUnfolder]: 776/1721 cut-off events. [2021-03-25 07:53:06,364 INFO L130 PetriNetUnfolder]: For 213798/213812 co-relation queries the response was YES. [2021-03-25 07:53:06,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29232 conditions, 1721 events. 776/1721 cut-off events. For 213798/213812 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 13274 event pairs, 4 based on Foata normal form. 14/1735 useless extension candidates. Maximal degree in co-relation 28620. Up to 1403 conditions per place. [2021-03-25 07:53:06,416 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1017 selfloop transitions, 110 changer transitions 30/1162 dead transitions. [2021-03-25 07:53:06,416 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 862 places, 1162 transitions, 41286 flow [2021-03-25 07:53:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:53:06,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:53:06,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:53:06,417 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4981060606060606 [2021-03-25 07:53:06,417 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:53:06,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:53:06,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:06,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:53:06,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:06,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:06,418 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:06,418 INFO L185 Difference]: Start difference. First operand has 855 places, 1150 transitions, 37994 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:53:06,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 862 places, 1162 transitions, 41286 flow [2021-03-25 07:53:08,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 840 places, 1162 transitions, 40723 flow, removed 85 selfloop flow, removed 22 redundant places. [2021-03-25 07:53:08,823 INFO L241 Difference]: Finished difference. Result has 846 places, 1128 transitions, 36710 flow [2021-03-25 07:53:08,824 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=37451, PETRI_DIFFERENCE_MINUEND_PLACES=833, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1040, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=36710, PETRI_PLACES=846, PETRI_TRANSITIONS=1128} [2021-03-25 07:53:08,824 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 815 predicate places. [2021-03-25 07:53:08,824 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:08,824 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 846 places, 1128 transitions, 36710 flow [2021-03-25 07:53:08,824 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 846 places, 1128 transitions, 36710 flow [2021-03-25 07:53:08,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 846 places, 1128 transitions, 36710 flow [2021-03-25 07:53:09,295 INFO L129 PetriNetUnfolder]: 592/1391 cut-off events. [2021-03-25 07:53:09,295 INFO L130 PetriNetUnfolder]: For 161313/161400 co-relation queries the response was YES. [2021-03-25 07:53:09,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22229 conditions, 1391 events. 592/1391 cut-off events. For 161313/161400 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 11060 event pairs, 0 based on Foata normal form. 33/1423 useless extension candidates. Maximal degree in co-relation 21768. Up to 413 conditions per place. [2021-03-25 07:53:09,354 INFO L142 LiptonReduction]: Number of co-enabled transitions 1490 [2021-03-25 07:53:09,499 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:09,499 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:53:09,499 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 675 [2021-03-25 07:53:09,499 INFO L480 AbstractCegarLoop]: Abstraction has has 846 places, 1128 transitions, 36710 flow [2021-03-25 07:53:09,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:09,500 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:09,500 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:09,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-03-25 07:53:09,500 INFO L428 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:09,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:09,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1504544247, now seen corresponding path program 13 times [2021-03-25 07:53:09,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:09,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9649234] [2021-03-25 07:53:09,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:09,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:09,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:09,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:09,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:09,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:09,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:09,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:09,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:09,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:09,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:53:09,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:09,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:09,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:09,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:09,542 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:09,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:09,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:09,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9649234] [2021-03-25 07:53:09,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:09,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:53:09,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979844394] [2021-03-25 07:53:09,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:53:09,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:09,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:53:09,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:53:09,546 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:53:09,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 846 places, 1128 transitions, 36710 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:09,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:09,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:53:09,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:10,720 INFO L129 PetriNetUnfolder]: 762/1686 cut-off events. [2021-03-25 07:53:10,720 INFO L130 PetriNetUnfolder]: For 206637/206651 co-relation queries the response was YES. [2021-03-25 07:53:10,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28192 conditions, 1686 events. 762/1686 cut-off events. For 206637/206651 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 12867 event pairs, 5 based on Foata normal form. 14/1700 useless extension candidates. Maximal degree in co-relation 27588. Up to 1369 conditions per place. [2021-03-25 07:53:10,771 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 992 selfloop transitions, 130 changer transitions 10/1137 dead transitions. [2021-03-25 07:53:10,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 853 places, 1137 transitions, 39506 flow [2021-03-25 07:53:10,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:53:10,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:53:10,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:53:10,772 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-03-25 07:53:10,772 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:53:10,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:53:10,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:10,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:53:10,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:10,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:10,773 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:10,773 INFO L185 Difference]: Start difference. First operand has 846 places, 1128 transitions, 36710 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:53:10,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 853 places, 1137 transitions, 39506 flow [2021-03-25 07:53:12,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 835 places, 1137 transitions, 39061 flow, removed 30 selfloop flow, removed 18 redundant places. [2021-03-25 07:53:12,835 INFO L241 Difference]: Finished difference. Result has 839 places, 1122 transitions, 36507 flow [2021-03-25 07:53:12,836 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=36269, PETRI_DIFFERENCE_MINUEND_PLACES=828, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=998, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=36507, PETRI_PLACES=839, PETRI_TRANSITIONS=1122} [2021-03-25 07:53:12,836 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 808 predicate places. [2021-03-25 07:53:12,836 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:12,836 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 839 places, 1122 transitions, 36507 flow [2021-03-25 07:53:12,836 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 839 places, 1122 transitions, 36507 flow [2021-03-25 07:53:12,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 839 places, 1122 transitions, 36507 flow [2021-03-25 07:53:13,357 INFO L129 PetriNetUnfolder]: 589/1385 cut-off events. [2021-03-25 07:53:13,357 INFO L130 PetriNetUnfolder]: For 162740/162837 co-relation queries the response was YES. [2021-03-25 07:53:13,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22161 conditions, 1385 events. 589/1385 cut-off events. For 162740/162837 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 11022 event pairs, 0 based on Foata normal form. 25/1409 useless extension candidates. Maximal degree in co-relation 21703. Up to 411 conditions per place. [2021-03-25 07:53:13,408 INFO L142 LiptonReduction]: Number of co-enabled transitions 1492 [2021-03-25 07:53:13,542 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:13,542 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:53:13,542 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 706 [2021-03-25 07:53:13,542 INFO L480 AbstractCegarLoop]: Abstraction has has 839 places, 1122 transitions, 36507 flow [2021-03-25 07:53:13,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:13,542 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:13,542 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:13,543 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-03-25 07:53:13,543 INFO L428 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:13,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:13,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1083972263, now seen corresponding path program 14 times [2021-03-25 07:53:13,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:13,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193166014] [2021-03-25 07:53:13,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:13,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:13,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:13,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:13,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:13,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:13,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:13,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:13,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:13,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:13,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:53:13,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:13,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:13,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:13,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:13,584 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:13,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:13,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:13,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193166014] [2021-03-25 07:53:13,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:13,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:53:13,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563718000] [2021-03-25 07:53:13,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:53:13,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:13,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:53:13,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:53:13,587 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2021-03-25 07:53:13,587 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 839 places, 1122 transitions, 36507 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:13,587 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:13,587 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2021-03-25 07:53:13,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:14,773 INFO L129 PetriNetUnfolder]: 767/1702 cut-off events. [2021-03-25 07:53:14,773 INFO L130 PetriNetUnfolder]: For 226722/226736 co-relation queries the response was YES. [2021-03-25 07:53:14,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28602 conditions, 1702 events. 767/1702 cut-off events. For 226722/226736 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 13095 event pairs, 96 based on Foata normal form. 14/1716 useless extension candidates. Maximal degree in co-relation 28001. Up to 1405 conditions per place. [2021-03-25 07:53:14,826 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 1002 selfloop transitions, 131 changer transitions 12/1150 dead transitions. [2021-03-25 07:53:14,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 846 places, 1150 transitions, 40250 flow [2021-03-25 07:53:14,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:53:14,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:53:14,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:53:14,827 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4962121212121212 [2021-03-25 07:53:14,827 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:53:14,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:53:14,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:14,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:53:14,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:14,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:14,828 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 66.0) internal successors, (594), 9 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:14,828 INFO L185 Difference]: Start difference. First operand has 839 places, 1122 transitions, 36507 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:53:14,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 846 places, 1150 transitions, 40250 flow [2021-03-25 07:53:17,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 837 places, 1150 transitions, 39849 flow, removed 49 selfloop flow, removed 9 redundant places. [2021-03-25 07:53:17,098 INFO L241 Difference]: Finished difference. Result has 842 places, 1135 transitions, 37053 flow [2021-03-25 07:53:17,099 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=36114, PETRI_DIFFERENCE_MINUEND_PLACES=830, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=994, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37053, PETRI_PLACES=842, PETRI_TRANSITIONS=1135} [2021-03-25 07:53:17,099 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 811 predicate places. [2021-03-25 07:53:17,099 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:17,099 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 842 places, 1135 transitions, 37053 flow [2021-03-25 07:53:17,099 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 842 places, 1135 transitions, 37053 flow [2021-03-25 07:53:17,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 842 places, 1135 transitions, 37053 flow [2021-03-25 07:53:17,592 INFO L129 PetriNetUnfolder]: 593/1412 cut-off events. [2021-03-25 07:53:17,592 INFO L130 PetriNetUnfolder]: For 161129/161213 co-relation queries the response was YES. [2021-03-25 07:53:17,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22292 conditions, 1412 events. 593/1412 cut-off events. For 161129/161213 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 11321 event pairs, 0 based on Foata normal form. 28/1439 useless extension candidates. Maximal degree in co-relation 21831. Up to 419 conditions per place. [2021-03-25 07:53:17,653 INFO L142 LiptonReduction]: Number of co-enabled transitions 1554 [2021-03-25 07:53:18,038 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:18,038 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:53:18,038 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 939 [2021-03-25 07:53:18,038 INFO L480 AbstractCegarLoop]: Abstraction has has 842 places, 1135 transitions, 37130 flow [2021-03-25 07:53:18,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:18,039 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:18,039 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:18,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-03-25 07:53:18,039 INFO L428 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:18,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:18,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1246687358, now seen corresponding path program 19 times [2021-03-25 07:53:18,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:18,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164014089] [2021-03-25 07:53:18,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:18,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:18,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:18,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:18,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:18,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:18,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:18,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:18,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:18,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:18,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:53:18,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:18,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:18,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:18,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:18,082 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:18,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:18,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:18,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164014089] [2021-03-25 07:53:18,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:18,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:53:18,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008973107] [2021-03-25 07:53:18,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:53:18,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:18,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:53:18,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:53:18,085 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 67 [2021-03-25 07:53:18,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 842 places, 1135 transitions, 37130 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:18,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:18,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 67 [2021-03-25 07:53:18,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:19,465 INFO L129 PetriNetUnfolder]: 776/1731 cut-off events. [2021-03-25 07:53:19,465 INFO L130 PetriNetUnfolder]: For 231482/231487 co-relation queries the response was YES. [2021-03-25 07:53:19,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29031 conditions, 1731 events. 776/1731 cut-off events. For 231482/231487 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 13362 event pairs, 105 based on Foata normal form. 6/1736 useless extension candidates. Maximal degree in co-relation 28567. Up to 1442 conditions per place. [2021-03-25 07:53:19,511 INFO L132 encePairwiseOnDemand]: 58/67 looper letters, 1060 selfloop transitions, 87 changer transitions 4/1156 dead transitions. [2021-03-25 07:53:19,512 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 849 places, 1156 transitions, 40164 flow [2021-03-25 07:53:19,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:53:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:53:19,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:53:19,512 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4906716417910448 [2021-03-25 07:53:19,512 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:53:19,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:53:19,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:19,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:53:19,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:19,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:19,513 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:19,513 INFO L185 Difference]: Start difference. First operand has 842 places, 1135 transitions, 37130 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:53:19,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 849 places, 1156 transitions, 40164 flow [2021-03-25 07:53:22,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 838 places, 1156 transitions, 39675 flow, removed 199 selfloop flow, removed 11 redundant places. [2021-03-25 07:53:22,127 INFO L241 Difference]: Finished difference. Result has 841 places, 1148 transitions, 37520 flow [2021-03-25 07:53:22,127 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=36643, PETRI_DIFFERENCE_MINUEND_PLACES=831, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1050, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37520, PETRI_PLACES=841, PETRI_TRANSITIONS=1148} [2021-03-25 07:53:22,127 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 810 predicate places. [2021-03-25 07:53:22,127 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:22,127 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 841 places, 1148 transitions, 37520 flow [2021-03-25 07:53:22,127 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 841 places, 1148 transitions, 37520 flow [2021-03-25 07:53:22,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 841 places, 1148 transitions, 37520 flow [2021-03-25 07:53:22,615 INFO L129 PetriNetUnfolder]: 597/1419 cut-off events. [2021-03-25 07:53:22,616 INFO L130 PetriNetUnfolder]: For 160429/160485 co-relation queries the response was YES. [2021-03-25 07:53:22,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22545 conditions, 1419 events. 597/1419 cut-off events. For 160429/160485 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 11420 event pairs, 1 based on Foata normal form. 22/1439 useless extension candidates. Maximal degree in co-relation 22086. Up to 429 conditions per place. [2021-03-25 07:53:22,676 INFO L142 LiptonReduction]: Number of co-enabled transitions 1588 [2021-03-25 07:53:22,822 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:22,823 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:53:22,823 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 696 [2021-03-25 07:53:22,823 INFO L480 AbstractCegarLoop]: Abstraction has has 841 places, 1148 transitions, 37520 flow [2021-03-25 07:53:22,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:22,823 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:22,823 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:22,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-03-25 07:53:22,823 INFO L428 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:22,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:22,824 INFO L82 PathProgramCache]: Analyzing trace with hash -308214669, now seen corresponding path program 1 times [2021-03-25 07:53:22,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:22,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656966416] [2021-03-25 07:53:22,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:22,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:22,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:22,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:22,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:22,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:22,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:22,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:22,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:22,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:22,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:22,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:22,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:22,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:22,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:22,855 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:22,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:22,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:22,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656966416] [2021-03-25 07:53:22,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:22,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:53:22,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894041163] [2021-03-25 07:53:22,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:53:22,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:22,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:53:22,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:53:22,859 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 67 [2021-03-25 07:53:22,859 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 841 places, 1148 transitions, 37520 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:22,859 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:22,859 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 67 [2021-03-25 07:53:22,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:23,877 INFO L129 PetriNetUnfolder]: 609/1415 cut-off events. [2021-03-25 07:53:23,877 INFO L130 PetriNetUnfolder]: For 186664/186703 co-relation queries the response was YES. [2021-03-25 07:53:23,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24743 conditions, 1415 events. 609/1415 cut-off events. For 186664/186703 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 10971 event pairs, 2 based on Foata normal form. 16/1431 useless extension candidates. Maximal degree in co-relation 24139. Up to 1174 conditions per place. [2021-03-25 07:53:23,921 INFO L132 encePairwiseOnDemand]: 58/67 looper letters, 1105 selfloop transitions, 42 changer transitions 2/1154 dead transitions. [2021-03-25 07:53:23,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 846 places, 1154 transitions, 40196 flow [2021-03-25 07:53:23,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:53:23,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:53:23,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2021-03-25 07:53:23,922 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4975124378109453 [2021-03-25 07:53:23,922 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 200 transitions. [2021-03-25 07:53:23,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 200 transitions. [2021-03-25 07:53:23,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:23,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 200 transitions. [2021-03-25 07:53:23,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:23,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:23,923 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:23,923 INFO L185 Difference]: Start difference. First operand has 841 places, 1148 transitions, 37520 flow. Second operand 6 states and 200 transitions. [2021-03-25 07:53:23,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 846 places, 1154 transitions, 40196 flow [2021-03-25 07:53:26,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 840 places, 1154 transitions, 39924 flow, removed 90 selfloop flow, removed 6 redundant places. [2021-03-25 07:53:26,255 INFO L241 Difference]: Finished difference. Result has 843 places, 1149 transitions, 37506 flow [2021-03-25 07:53:26,256 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=37252, PETRI_DIFFERENCE_MINUEND_PLACES=835, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=37506, PETRI_PLACES=843, PETRI_TRANSITIONS=1149} [2021-03-25 07:53:26,256 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 812 predicate places. [2021-03-25 07:53:26,256 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:26,256 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 843 places, 1149 transitions, 37506 flow [2021-03-25 07:53:26,256 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 843 places, 1149 transitions, 37506 flow [2021-03-25 07:53:26,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 843 places, 1149 transitions, 37506 flow [2021-03-25 07:53:26,763 INFO L129 PetriNetUnfolder]: 597/1433 cut-off events. [2021-03-25 07:53:26,763 INFO L130 PetriNetUnfolder]: For 159221/159343 co-relation queries the response was YES. [2021-03-25 07:53:26,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22547 conditions, 1433 events. 597/1433 cut-off events. For 159221/159343 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 11615 event pairs, 0 based on Foata normal form. 29/1460 useless extension candidates. Maximal degree in co-relation 22088. Up to 429 conditions per place. [2021-03-25 07:53:26,827 INFO L142 LiptonReduction]: Number of co-enabled transitions 1588 [2021-03-25 07:53:26,986 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:26,986 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:53:26,986 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 730 [2021-03-25 07:53:26,986 INFO L480 AbstractCegarLoop]: Abstraction has has 843 places, 1149 transitions, 37506 flow [2021-03-25 07:53:26,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:26,986 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:26,986 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:26,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-03-25 07:53:26,986 INFO L428 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:26,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:26,987 INFO L82 PathProgramCache]: Analyzing trace with hash -475626988, now seen corresponding path program 20 times [2021-03-25 07:53:26,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:26,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277247221] [2021-03-25 07:53:26,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:26,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:26,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:27,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:27,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:27,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:27,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:27,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:27,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:27,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:27,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:53:27,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:27,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:27,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:27,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:27,036 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:27,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:27,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:27,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277247221] [2021-03-25 07:53:27,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:27,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:53:27,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439525101] [2021-03-25 07:53:27,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:53:27,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:27,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:53:27,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:53:27,039 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 67 [2021-03-25 07:53:27,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 1149 transitions, 37506 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:27,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:27,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 67 [2021-03-25 07:53:27,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:28,329 INFO L129 PetriNetUnfolder]: 781/1745 cut-off events. [2021-03-25 07:53:28,330 INFO L130 PetriNetUnfolder]: For 212954/212954 co-relation queries the response was YES. [2021-03-25 07:53:28,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29284 conditions, 1745 events. 781/1745 cut-off events. For 212954/212954 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 13546 event pairs, 4 based on Foata normal form. 1/1746 useless extension candidates. Maximal degree in co-relation 28822. Up to 1435 conditions per place. [2021-03-25 07:53:28,386 INFO L132 encePairwiseOnDemand]: 58/67 looper letters, 1027 selfloop transitions, 121 changer transitions 16/1169 dead transitions. [2021-03-25 07:53:28,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 850 places, 1169 transitions, 40567 flow [2021-03-25 07:53:28,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:53:28,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:53:28,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:53:28,387 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48880597014925375 [2021-03-25 07:53:28,387 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:53:28,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:53:28,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:28,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:53:28,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:28,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:28,388 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:28,388 INFO L185 Difference]: Start difference. First operand has 843 places, 1149 transitions, 37506 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:53:28,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 850 places, 1169 transitions, 40567 flow [2021-03-25 07:53:30,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 847 places, 1169 transitions, 40398 flow, removed 50 selfloop flow, removed 3 redundant places. [2021-03-25 07:53:30,922 INFO L241 Difference]: Finished difference. Result has 851 places, 1150 transitions, 37801 flow [2021-03-25 07:53:30,922 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=37337, PETRI_DIFFERENCE_MINUEND_PLACES=840, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1030, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37801, PETRI_PLACES=851, PETRI_TRANSITIONS=1150} [2021-03-25 07:53:30,922 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 820 predicate places. [2021-03-25 07:53:30,922 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:30,922 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 851 places, 1150 transitions, 37801 flow [2021-03-25 07:53:30,922 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 851 places, 1150 transitions, 37801 flow [2021-03-25 07:53:30,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 851 places, 1150 transitions, 37801 flow [2021-03-25 07:53:31,475 INFO L129 PetriNetUnfolder]: 598/1398 cut-off events. [2021-03-25 07:53:31,475 INFO L130 PetriNetUnfolder]: For 161571/161659 co-relation queries the response was YES. [2021-03-25 07:53:31,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22652 conditions, 1398 events. 598/1398 cut-off events. For 161571/161659 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 11105 event pairs, 2 based on Foata normal form. 22/1418 useless extension candidates. Maximal degree in co-relation 22189. Up to 434 conditions per place. [2021-03-25 07:53:31,524 INFO L142 LiptonReduction]: Number of co-enabled transitions 1610 [2021-03-25 07:53:31,663 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:31,663 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:53:31,663 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 741 [2021-03-25 07:53:31,664 INFO L480 AbstractCegarLoop]: Abstraction has has 851 places, 1150 transitions, 37801 flow [2021-03-25 07:53:31,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:31,664 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:31,664 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:31,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-03-25 07:53:31,664 INFO L428 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:31,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:31,664 INFO L82 PathProgramCache]: Analyzing trace with hash 335751957, now seen corresponding path program 2 times [2021-03-25 07:53:31,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:31,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192093310] [2021-03-25 07:53:31,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:31,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:31,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:31,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:31,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:31,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:31,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:31,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:31,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:31,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:31,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:31,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:31,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:31,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:31,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:31,697 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:31,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:31,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:31,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192093310] [2021-03-25 07:53:31,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:31,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:53:31,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471230575] [2021-03-25 07:53:31,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:53:31,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:31,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:53:31,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:53:31,700 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 67 [2021-03-25 07:53:31,700 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 851 places, 1150 transitions, 37801 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:31,701 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:31,701 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 67 [2021-03-25 07:53:31,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:32,744 INFO L129 PetriNetUnfolder]: 610/1415 cut-off events. [2021-03-25 07:53:32,745 INFO L130 PetriNetUnfolder]: For 193192/193247 co-relation queries the response was YES. [2021-03-25 07:53:32,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24951 conditions, 1415 events. 610/1415 cut-off events. For 193192/193247 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 10958 event pairs, 6 based on Foata normal form. 26/1441 useless extension candidates. Maximal degree in co-relation 24341. Up to 1156 conditions per place. [2021-03-25 07:53:32,786 INFO L132 encePairwiseOnDemand]: 58/67 looper letters, 1087 selfloop transitions, 52 changer transitions 14/1158 dead transitions. [2021-03-25 07:53:32,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 857 places, 1158 transitions, 40631 flow [2021-03-25 07:53:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:53:32,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:53:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:53:32,787 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4946695095948827 [2021-03-25 07:53:32,787 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:53:32,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:53:32,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:32,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:53:32,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:32,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:32,788 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:32,788 INFO L185 Difference]: Start difference. First operand has 851 places, 1150 transitions, 37801 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:53:32,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 857 places, 1158 transitions, 40631 flow [2021-03-25 07:53:35,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 842 places, 1158 transitions, 40182 flow, removed 109 selfloop flow, removed 15 redundant places. [2021-03-25 07:53:35,128 INFO L241 Difference]: Finished difference. Result has 846 places, 1140 transitions, 37011 flow [2021-03-25 07:53:35,129 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=37364, PETRI_DIFFERENCE_MINUEND_PLACES=836, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1098, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=37011, PETRI_PLACES=846, PETRI_TRANSITIONS=1140} [2021-03-25 07:53:35,129 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 815 predicate places. [2021-03-25 07:53:35,129 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:35,129 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 846 places, 1140 transitions, 37011 flow [2021-03-25 07:53:35,129 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 846 places, 1140 transitions, 37011 flow [2021-03-25 07:53:35,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 846 places, 1140 transitions, 37011 flow [2021-03-25 07:53:35,634 INFO L129 PetriNetUnfolder]: 594/1385 cut-off events. [2021-03-25 07:53:35,635 INFO L130 PetriNetUnfolder]: For 162229/162340 co-relation queries the response was YES. [2021-03-25 07:53:35,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22239 conditions, 1385 events. 594/1385 cut-off events. For 162229/162340 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 10901 event pairs, 1 based on Foata normal form. 27/1410 useless extension candidates. Maximal degree in co-relation 21775. Up to 428 conditions per place. [2021-03-25 07:53:35,699 INFO L142 LiptonReduction]: Number of co-enabled transitions 1606 [2021-03-25 07:53:35,847 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:35,847 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:53:35,847 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 718 [2021-03-25 07:53:35,847 INFO L480 AbstractCegarLoop]: Abstraction has has 846 places, 1140 transitions, 37011 flow [2021-03-25 07:53:35,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:35,847 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:35,847 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:35,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-03-25 07:53:35,848 INFO L428 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:35,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:35,848 INFO L82 PathProgramCache]: Analyzing trace with hash -421037289, now seen corresponding path program 3 times [2021-03-25 07:53:35,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:35,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977025902] [2021-03-25 07:53:35,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:35,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:35,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:35,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:35,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:35,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:35,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:35,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:35,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:35,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:35,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:53:35,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:35,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:35,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:35,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:35,883 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:35,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:35,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977025902] [2021-03-25 07:53:35,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:35,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:53:35,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87739641] [2021-03-25 07:53:35,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:53:35,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:35,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:53:35,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:53:35,886 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 67 [2021-03-25 07:53:35,886 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 846 places, 1140 transitions, 37011 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:35,886 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:35,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 67 [2021-03-25 07:53:35,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:36,978 INFO L129 PetriNetUnfolder]: 610/1411 cut-off events. [2021-03-25 07:53:36,979 INFO L130 PetriNetUnfolder]: For 191861/191916 co-relation queries the response was YES. [2021-03-25 07:53:37,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24841 conditions, 1411 events. 610/1411 cut-off events. For 191861/191916 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 10865 event pairs, 5 based on Foata normal form. 18/1429 useless extension candidates. Maximal degree in co-relation 24228. Up to 1152 conditions per place. [2021-03-25 07:53:37,014 INFO L132 encePairwiseOnDemand]: 58/67 looper letters, 1076 selfloop transitions, 71 changer transitions 3/1155 dead transitions. [2021-03-25 07:53:37,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 852 places, 1155 transitions, 40421 flow [2021-03-25 07:53:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:53:37,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:53:37,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2021-03-25 07:53:37,015 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4946695095948827 [2021-03-25 07:53:37,015 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 232 transitions. [2021-03-25 07:53:37,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 232 transitions. [2021-03-25 07:53:37,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:37,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 232 transitions. [2021-03-25 07:53:37,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:37,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:37,016 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:37,016 INFO L185 Difference]: Start difference. First operand has 846 places, 1140 transitions, 37011 flow. Second operand 7 states and 232 transitions. [2021-03-25 07:53:37,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 852 places, 1155 transitions, 40421 flow [2021-03-25 07:53:39,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 834 places, 1155 transitions, 40133 flow, removed 25 selfloop flow, removed 18 redundant places. [2021-03-25 07:53:39,194 INFO L241 Difference]: Finished difference. Result has 839 places, 1148 transitions, 37714 flow [2021-03-25 07:53:39,195 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=36751, PETRI_DIFFERENCE_MINUEND_PLACES=828, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1071, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=37714, PETRI_PLACES=839, PETRI_TRANSITIONS=1148} [2021-03-25 07:53:39,195 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 808 predicate places. [2021-03-25 07:53:39,195 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:39,195 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 839 places, 1148 transitions, 37714 flow [2021-03-25 07:53:39,195 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 839 places, 1148 transitions, 37714 flow [2021-03-25 07:53:39,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 839 places, 1148 transitions, 37714 flow [2021-03-25 07:53:39,683 INFO L129 PetriNetUnfolder]: 597/1406 cut-off events. [2021-03-25 07:53:39,683 INFO L130 PetriNetUnfolder]: For 163475/163527 co-relation queries the response was YES. [2021-03-25 07:53:39,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22590 conditions, 1406 events. 597/1406 cut-off events. For 163475/163527 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 11265 event pairs, 0 based on Foata normal form. 23/1427 useless extension candidates. Maximal degree in co-relation 22131. Up to 430 conditions per place. [2021-03-25 07:53:39,746 INFO L142 LiptonReduction]: Number of co-enabled transitions 1616 [2021-03-25 07:53:39,902 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:39,902 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:53:39,903 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 708 [2021-03-25 07:53:39,903 INFO L480 AbstractCegarLoop]: Abstraction has has 839 places, 1148 transitions, 37714 flow [2021-03-25 07:53:39,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:39,903 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:39,903 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:39,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-03-25 07:53:39,903 INFO L428 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:39,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:39,903 INFO L82 PathProgramCache]: Analyzing trace with hash -2135218473, now seen corresponding path program 4 times [2021-03-25 07:53:39,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:39,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122320655] [2021-03-25 07:53:39,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:39,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:39,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:39,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:39,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:39,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:39,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:39,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:39,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:39,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:39,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:53:39,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:39,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:39,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:39,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:39,947 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:39,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:39,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:39,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122320655] [2021-03-25 07:53:39,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:39,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:53:39,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327086535] [2021-03-25 07:53:39,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:53:39,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:39,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:53:39,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:53:39,950 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 67 [2021-03-25 07:53:39,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 839 places, 1148 transitions, 37714 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:39,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:39,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 67 [2021-03-25 07:53:39,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:41,017 INFO L129 PetriNetUnfolder]: 611/1421 cut-off events. [2021-03-25 07:53:41,017 INFO L130 PetriNetUnfolder]: For 199830/199885 co-relation queries the response was YES. [2021-03-25 07:53:41,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25094 conditions, 1421 events. 611/1421 cut-off events. For 199830/199885 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 11005 event pairs, 5 based on Foata normal form. 26/1447 useless extension candidates. Maximal degree in co-relation 24488. Up to 1127 conditions per place. [2021-03-25 07:53:41,058 INFO L132 encePairwiseOnDemand]: 58/67 looper letters, 1045 selfloop transitions, 106 changer transitions 4/1160 dead transitions. [2021-03-25 07:53:41,058 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 846 places, 1160 transitions, 40942 flow [2021-03-25 07:53:41,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:53:41,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:53:41,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:53:41,059 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4906716417910448 [2021-03-25 07:53:41,059 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:53:41,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:53:41,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:41,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:53:41,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:41,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:41,060 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:41,060 INFO L185 Difference]: Start difference. First operand has 839 places, 1148 transitions, 37714 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:53:41,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 846 places, 1160 transitions, 40942 flow [2021-03-25 07:53:43,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 845 places, 1160 transitions, 39970 flow, removed 480 selfloop flow, removed 1 redundant places. [2021-03-25 07:53:43,305 INFO L241 Difference]: Finished difference. Result has 850 places, 1152 transitions, 37708 flow [2021-03-25 07:53:43,306 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=37174, PETRI_DIFFERENCE_MINUEND_PLACES=838, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1042, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37708, PETRI_PLACES=850, PETRI_TRANSITIONS=1152} [2021-03-25 07:53:43,306 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 819 predicate places. [2021-03-25 07:53:43,306 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:43,306 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 850 places, 1152 transitions, 37708 flow [2021-03-25 07:53:43,306 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 850 places, 1152 transitions, 37708 flow [2021-03-25 07:53:43,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 850 places, 1152 transitions, 37708 flow [2021-03-25 07:53:43,853 INFO L129 PetriNetUnfolder]: 598/1423 cut-off events. [2021-03-25 07:53:43,853 INFO L130 PetriNetUnfolder]: For 160828/160836 co-relation queries the response was YES. [2021-03-25 07:53:43,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22649 conditions, 1423 events. 598/1423 cut-off events. For 160828/160836 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 11513 event pairs, 1 based on Foata normal form. 2/1425 useless extension candidates. Maximal degree in co-relation 22184. Up to 431 conditions per place. [2021-03-25 07:53:43,906 INFO L142 LiptonReduction]: Number of co-enabled transitions 1620 [2021-03-25 07:53:44,046 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:44,046 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:53:44,046 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 740 [2021-03-25 07:53:44,046 INFO L480 AbstractCegarLoop]: Abstraction has has 850 places, 1152 transitions, 37708 flow [2021-03-25 07:53:44,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:44,046 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:44,046 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:44,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-03-25 07:53:44,047 INFO L428 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:44,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:44,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1073064899, now seen corresponding path program 5 times [2021-03-25 07:53:44,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:44,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839033834] [2021-03-25 07:53:44,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:44,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:44,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:44,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:44,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:44,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:44,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:44,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:44,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:44,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:44,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:44,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:44,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:44,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:44,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:44,076 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:44,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:44,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:44,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839033834] [2021-03-25 07:53:44,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:44,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:53:44,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115715802] [2021-03-25 07:53:44,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:53:44,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:44,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:53:44,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:53:44,079 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 67 [2021-03-25 07:53:44,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 850 places, 1152 transitions, 37708 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:44,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:44,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 67 [2021-03-25 07:53:44,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:45,079 INFO L129 PetriNetUnfolder]: 609/1409 cut-off events. [2021-03-25 07:53:45,079 INFO L130 PetriNetUnfolder]: For 184453/184508 co-relation queries the response was YES. [2021-03-25 07:53:45,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24757 conditions, 1409 events. 609/1409 cut-off events. For 184453/184508 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 10898 event pairs, 4 based on Foata normal form. 26/1435 useless extension candidates. Maximal degree in co-relation 24143. Up to 1180 conditions per place. [2021-03-25 07:53:45,121 INFO L132 encePairwiseOnDemand]: 58/67 looper letters, 1123 selfloop transitions, 26 changer transitions 3/1157 dead transitions. [2021-03-25 07:53:45,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 855 places, 1157 transitions, 40162 flow [2021-03-25 07:53:45,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:53:45,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:53:45,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2021-03-25 07:53:45,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-03-25 07:53:45,122 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 201 transitions. [2021-03-25 07:53:45,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 201 transitions. [2021-03-25 07:53:45,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:45,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 201 transitions. [2021-03-25 07:53:45,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:45,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:45,123 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:45,123 INFO L185 Difference]: Start difference. First operand has 850 places, 1152 transitions, 37708 flow. Second operand 6 states and 201 transitions. [2021-03-25 07:53:45,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 855 places, 1157 transitions, 40162 flow [2021-03-25 07:53:47,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 851 places, 1157 transitions, 39930 flow, removed 49 selfloop flow, removed 4 redundant places. [2021-03-25 07:53:47,466 INFO L241 Difference]: Finished difference. Result has 853 places, 1150 transitions, 37445 flow [2021-03-25 07:53:47,466 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=37476, PETRI_DIFFERENCE_MINUEND_PLACES=846, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=37445, PETRI_PLACES=853, PETRI_TRANSITIONS=1150} [2021-03-25 07:53:47,466 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 822 predicate places. [2021-03-25 07:53:47,466 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:47,467 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 853 places, 1150 transitions, 37445 flow [2021-03-25 07:53:47,467 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 853 places, 1150 transitions, 37445 flow [2021-03-25 07:53:47,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 853 places, 1150 transitions, 37445 flow [2021-03-25 07:53:47,958 INFO L129 PetriNetUnfolder]: 597/1403 cut-off events. [2021-03-25 07:53:47,959 INFO L130 PetriNetUnfolder]: For 163220/163301 co-relation queries the response was YES. [2021-03-25 07:53:47,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22480 conditions, 1403 events. 597/1403 cut-off events. For 163220/163301 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 11231 event pairs, 0 based on Foata normal form. 23/1425 useless extension candidates. Maximal degree in co-relation 22013. Up to 430 conditions per place. [2021-03-25 07:53:48,026 INFO L142 LiptonReduction]: Number of co-enabled transitions 1620 [2021-03-25 07:53:48,176 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:48,176 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:53:48,176 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 710 [2021-03-25 07:53:48,177 INFO L480 AbstractCegarLoop]: Abstraction has has 853 places, 1150 transitions, 37445 flow [2021-03-25 07:53:48,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:48,177 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:48,177 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:48,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-03-25 07:53:48,177 INFO L428 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:48,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:48,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1807191262, now seen corresponding path program 21 times [2021-03-25 07:53:48,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:48,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617951067] [2021-03-25 07:53:48,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:48,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:48,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:48,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:48,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:48,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:48,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:48,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:48,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:48,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:48,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:53:48,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:48,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:48,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:48,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:48,221 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:48,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:48,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617951067] [2021-03-25 07:53:48,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:48,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:53:48,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378254927] [2021-03-25 07:53:48,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:53:48,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:48,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:53:48,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:53:48,224 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 67 [2021-03-25 07:53:48,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 853 places, 1150 transitions, 37445 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:48,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:48,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 67 [2021-03-25 07:53:48,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:49,483 INFO L129 PetriNetUnfolder]: 781/1739 cut-off events. [2021-03-25 07:53:49,484 INFO L130 PetriNetUnfolder]: For 215796/215801 co-relation queries the response was YES. [2021-03-25 07:53:49,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29272 conditions, 1739 events. 781/1739 cut-off events. For 215796/215801 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 13423 event pairs, 6 based on Foata normal form. 6/1745 useless extension candidates. Maximal degree in co-relation 28802. Up to 1435 conditions per place. [2021-03-25 07:53:49,528 INFO L132 encePairwiseOnDemand]: 58/67 looper letters, 1040 selfloop transitions, 113 changer transitions 17/1175 dead transitions. [2021-03-25 07:53:49,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 860 places, 1175 transitions, 40681 flow [2021-03-25 07:53:49,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:53:49,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:53:49,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:53:49,529 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4906716417910448 [2021-03-25 07:53:49,529 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:53:49,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:53:49,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:49,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:53:49,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:49,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:49,530 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:49,530 INFO L185 Difference]: Start difference. First operand has 853 places, 1150 transitions, 37445 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:53:49,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 860 places, 1175 transitions, 40681 flow [2021-03-25 07:53:51,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 852 places, 1175 transitions, 40601 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-03-25 07:53:51,849 INFO L241 Difference]: Finished difference. Result has 856 places, 1154 transitions, 37550 flow [2021-03-25 07:53:51,849 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=37365, PETRI_DIFFERENCE_MINUEND_PLACES=845, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1039, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37550, PETRI_PLACES=856, PETRI_TRANSITIONS=1154} [2021-03-25 07:53:51,849 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 825 predicate places. [2021-03-25 07:53:51,849 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:51,849 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 856 places, 1154 transitions, 37550 flow [2021-03-25 07:53:51,850 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 856 places, 1154 transitions, 37550 flow [2021-03-25 07:53:51,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 856 places, 1154 transitions, 37550 flow [2021-03-25 07:53:52,348 INFO L129 PetriNetUnfolder]: 600/1418 cut-off events. [2021-03-25 07:53:52,348 INFO L130 PetriNetUnfolder]: For 155922/155992 co-relation queries the response was YES. [2021-03-25 07:53:52,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22323 conditions, 1418 events. 600/1418 cut-off events. For 155922/155992 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 11394 event pairs, 0 based on Foata normal form. 21/1439 useless extension candidates. Maximal degree in co-relation 21855. Up to 433 conditions per place. [2021-03-25 07:53:52,407 INFO L142 LiptonReduction]: Number of co-enabled transitions 1646 [2021-03-25 07:53:52,806 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 07:53:52,807 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 07:53:52,807 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 958 [2021-03-25 07:53:52,807 INFO L480 AbstractCegarLoop]: Abstraction has has 856 places, 1154 transitions, 37694 flow [2021-03-25 07:53:52,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:52,807 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:52,807 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:52,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-03-25 07:53:52,807 INFO L428 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:52,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:52,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1302029235, now seen corresponding path program 6 times [2021-03-25 07:53:52,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:52,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501293306] [2021-03-25 07:53:52,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:52,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:52,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:52,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:52,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:52,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:52,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:52,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:52,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:52,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:52,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:52,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:52,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:52,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:52,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:52,840 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:52,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:52,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:52,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501293306] [2021-03-25 07:53:52,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:52,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:53:52,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787914220] [2021-03-25 07:53:52,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:53:52,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:52,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:53:52,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:53:52,843 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2021-03-25 07:53:52,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 856 places, 1154 transitions, 37694 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:52,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:52,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2021-03-25 07:53:52,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:53,926 INFO L129 PetriNetUnfolder]: 611/1417 cut-off events. [2021-03-25 07:53:53,927 INFO L130 PetriNetUnfolder]: For 178219/178242 co-relation queries the response was YES. [2021-03-25 07:53:53,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24632 conditions, 1417 events. 611/1417 cut-off events. For 178219/178242 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 11039 event pairs, 1 based on Foata normal form. 14/1429 useless extension candidates. Maximal degree in co-relation 24014. Up to 1167 conditions per place. [2021-03-25 07:53:53,973 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 1092 selfloop transitions, 62 changer transitions 2/1161 dead transitions. [2021-03-25 07:53:53,973 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 862 places, 1161 transitions, 40436 flow [2021-03-25 07:53:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:53:53,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:53:53,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2021-03-25 07:53:53,974 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2021-03-25 07:53:53,974 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 230 transitions. [2021-03-25 07:53:53,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 230 transitions. [2021-03-25 07:53:53,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:53,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 230 transitions. [2021-03-25 07:53:53,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.857142857142854) internal successors, (230), 7 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:53,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:53,975 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:53,975 INFO L185 Difference]: Start difference. First operand has 856 places, 1154 transitions, 37694 flow. Second operand 7 states and 230 transitions. [2021-03-25 07:53:53,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 862 places, 1161 transitions, 40436 flow [2021-03-25 07:53:56,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 822 places, 1161 transitions, 38810 flow, removed 498 selfloop flow, removed 40 redundant places. [2021-03-25 07:53:56,349 INFO L241 Difference]: Finished difference. Result has 825 places, 1156 transitions, 36443 flow [2021-03-25 07:53:56,350 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=36114, PETRI_DIFFERENCE_MINUEND_PLACES=816, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1092, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=36443, PETRI_PLACES=825, PETRI_TRANSITIONS=1156} [2021-03-25 07:53:56,350 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 794 predicate places. [2021-03-25 07:53:56,350 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:53:56,350 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 825 places, 1156 transitions, 36443 flow [2021-03-25 07:53:56,350 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 825 places, 1156 transitions, 36443 flow [2021-03-25 07:53:56,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 825 places, 1156 transitions, 36443 flow [2021-03-25 07:53:56,824 INFO L129 PetriNetUnfolder]: 600/1412 cut-off events. [2021-03-25 07:53:56,825 INFO L130 PetriNetUnfolder]: For 143947/144009 co-relation queries the response was YES. [2021-03-25 07:53:56,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21511 conditions, 1412 events. 600/1412 cut-off events. For 143947/144009 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 11338 event pairs, 0 based on Foata normal form. 22/1433 useless extension candidates. Maximal degree in co-relation 21066. Up to 436 conditions per place. [2021-03-25 07:53:56,883 INFO L142 LiptonReduction]: Number of co-enabled transitions 1646 [2021-03-25 07:53:57,042 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:53:57,042 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:53:57,042 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 692 [2021-03-25 07:53:57,042 INFO L480 AbstractCegarLoop]: Abstraction has has 825 places, 1156 transitions, 36443 flow [2021-03-25 07:53:57,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:57,042 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:53:57,042 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:53:57,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-03-25 07:53:57,043 INFO L428 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:53:57,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:53:57,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1621893245, now seen corresponding path program 7 times [2021-03-25 07:53:57,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:53:57,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15322497] [2021-03-25 07:53:57,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:53:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:53:57,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:57,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:57,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:57,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:57,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:57,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:57,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:57,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:57,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:57,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:53:57,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:57,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:53:57,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:53:57,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:53:57,096 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:53:57,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:53:57,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:53:57,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15322497] [2021-03-25 07:53:57,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:53:57,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:53:57,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586062900] [2021-03-25 07:53:57,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:53:57,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:53:57,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:53:57,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:53:57,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2021-03-25 07:53:57,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 825 places, 1156 transitions, 36443 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:57,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:53:57,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2021-03-25 07:53:57,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:53:58,260 INFO L129 PetriNetUnfolder]: 611/1411 cut-off events. [2021-03-25 07:53:58,260 INFO L130 PetriNetUnfolder]: For 165477/165502 co-relation queries the response was YES. [2021-03-25 07:53:58,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23711 conditions, 1411 events. 611/1411 cut-off events. For 165477/165502 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 10968 event pairs, 1 based on Foata normal form. 24/1435 useless extension candidates. Maximal degree in co-relation 23116. Up to 1170 conditions per place. [2021-03-25 07:53:58,300 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 1101 selfloop transitions, 56 changer transitions 2/1164 dead transitions. [2021-03-25 07:53:58,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 832 places, 1164 transitions, 39178 flow [2021-03-25 07:53:58,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:53:58,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:53:58,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:53:58,301 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4746376811594203 [2021-03-25 07:53:58,301 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:53:58,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:53:58,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:53:58,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:53:58,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:58,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:58,302 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:53:58,302 INFO L185 Difference]: Start difference. First operand has 825 places, 1156 transitions, 36443 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:53:58,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 832 places, 1164 transitions, 39178 flow [2021-03-25 07:54:00,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 825 places, 1164 transitions, 38938 flow, removed 49 selfloop flow, removed 7 redundant places. [2021-03-25 07:54:00,153 INFO L241 Difference]: Finished difference. Result has 829 places, 1158 transitions, 36545 flow [2021-03-25 07:54:00,153 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=36205, PETRI_DIFFERENCE_MINUEND_PLACES=818, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=36545, PETRI_PLACES=829, PETRI_TRANSITIONS=1158} [2021-03-25 07:54:00,154 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 798 predicate places. [2021-03-25 07:54:00,154 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:00,154 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 829 places, 1158 transitions, 36545 flow [2021-03-25 07:54:00,154 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 829 places, 1158 transitions, 36545 flow [2021-03-25 07:54:00,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 829 places, 1158 transitions, 36545 flow [2021-03-25 07:54:00,624 INFO L129 PetriNetUnfolder]: 600/1421 cut-off events. [2021-03-25 07:54:00,624 INFO L130 PetriNetUnfolder]: For 147168/147230 co-relation queries the response was YES. [2021-03-25 07:54:00,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21607 conditions, 1421 events. 600/1421 cut-off events. For 147168/147230 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 11482 event pairs, 0 based on Foata normal form. 22/1442 useless extension candidates. Maximal degree in co-relation 21157. Up to 436 conditions per place. [2021-03-25 07:54:00,682 INFO L142 LiptonReduction]: Number of co-enabled transitions 1648 [2021-03-25 07:54:00,834 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:00,834 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:00,834 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 680 [2021-03-25 07:54:00,834 INFO L480 AbstractCegarLoop]: Abstraction has has 829 places, 1158 transitions, 36545 flow [2021-03-25 07:54:00,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:00,834 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:00,834 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:00,835 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-03-25 07:54:00,835 INFO L428 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:00,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:00,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1397651727, now seen corresponding path program 8 times [2021-03-25 07:54:00,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:00,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747786867] [2021-03-25 07:54:00,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:00,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:00,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:00,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:00,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:00,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:00,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:00,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:00,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:00,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:00,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:00,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:00,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:00,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:00,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:00,869 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:00,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:00,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747786867] [2021-03-25 07:54:00,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:00,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:54:00,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816526622] [2021-03-25 07:54:00,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:54:00,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:00,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:54:00,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:54:00,872 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2021-03-25 07:54:00,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 829 places, 1158 transitions, 36545 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:00,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:00,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2021-03-25 07:54:00,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:01,823 INFO L129 PetriNetUnfolder]: 610/1417 cut-off events. [2021-03-25 07:54:01,824 INFO L130 PetriNetUnfolder]: For 164441/164456 co-relation queries the response was YES. [2021-03-25 07:54:01,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23666 conditions, 1417 events. 610/1417 cut-off events. For 164441/164456 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 11081 event pairs, 3 based on Foata normal form. 15/1432 useless extension candidates. Maximal degree in co-relation 23065. Up to 1147 conditions per place. [2021-03-25 07:54:01,865 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 1091 selfloop transitions, 62 changer transitions 5/1163 dead transitions. [2021-03-25 07:54:01,865 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 835 places, 1163 transitions, 38985 flow [2021-03-25 07:54:01,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:54:01,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:54:01,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2021-03-25 07:54:01,866 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4782608695652174 [2021-03-25 07:54:01,866 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 231 transitions. [2021-03-25 07:54:01,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 231 transitions. [2021-03-25 07:54:01,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:01,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 231 transitions. [2021-03-25 07:54:01,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.0) internal successors, (231), 7 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:01,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:01,867 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:01,867 INFO L185 Difference]: Start difference. First operand has 829 places, 1158 transitions, 36545 flow. Second operand 7 states and 231 transitions. [2021-03-25 07:54:01,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 835 places, 1163 transitions, 38985 flow [2021-03-25 07:54:03,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 829 places, 1163 transitions, 38793 flow, removed 48 selfloop flow, removed 6 redundant places. [2021-03-25 07:54:03,886 INFO L241 Difference]: Finished difference. Result has 831 places, 1154 transitions, 36376 flow [2021-03-25 07:54:03,886 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=36353, PETRI_DIFFERENCE_MINUEND_PLACES=823, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1096, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=36376, PETRI_PLACES=831, PETRI_TRANSITIONS=1154} [2021-03-25 07:54:03,886 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 800 predicate places. [2021-03-25 07:54:03,886 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:03,886 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 831 places, 1154 transitions, 36376 flow [2021-03-25 07:54:03,887 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 831 places, 1154 transitions, 36376 flow [2021-03-25 07:54:03,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 831 places, 1154 transitions, 36376 flow [2021-03-25 07:54:04,376 INFO L129 PetriNetUnfolder]: 598/1415 cut-off events. [2021-03-25 07:54:04,376 INFO L130 PetriNetUnfolder]: For 146745/146795 co-relation queries the response was YES. [2021-03-25 07:54:04,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21510 conditions, 1415 events. 598/1415 cut-off events. For 146745/146795 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 11373 event pairs, 0 based on Foata normal form. 27/1440 useless extension candidates. Maximal degree in co-relation 21060. Up to 434 conditions per place. [2021-03-25 07:54:04,433 INFO L142 LiptonReduction]: Number of co-enabled transitions 1638 [2021-03-25 07:54:04,590 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:04,590 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:04,590 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 704 [2021-03-25 07:54:04,590 INFO L480 AbstractCegarLoop]: Abstraction has has 831 places, 1154 transitions, 36376 flow [2021-03-25 07:54:04,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:04,590 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:04,590 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:04,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-03-25 07:54:04,590 INFO L428 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:04,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:04,591 INFO L82 PathProgramCache]: Analyzing trace with hash 987794903, now seen corresponding path program 9 times [2021-03-25 07:54:04,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:04,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191201516] [2021-03-25 07:54:04,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:04,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:04,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:04,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:04,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:04,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:04,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:04,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:04,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:04,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:04,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:04,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:04,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:04,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:04,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:04,623 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:04,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:04,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:04,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191201516] [2021-03-25 07:54:04,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:04,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:54:04,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639534867] [2021-03-25 07:54:04,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:54:04,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:04,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:54:04,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:54:04,626 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2021-03-25 07:54:04,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 1154 transitions, 36376 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:04,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:04,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2021-03-25 07:54:04,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:05,728 INFO L129 PetriNetUnfolder]: 608/1411 cut-off events. [2021-03-25 07:54:05,728 INFO L130 PetriNetUnfolder]: For 162536/162561 co-relation queries the response was YES. [2021-03-25 07:54:05,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23594 conditions, 1411 events. 608/1411 cut-off events. For 162536/162561 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 10980 event pairs, 2 based on Foata normal form. 24/1435 useless extension candidates. Maximal degree in co-relation 22993. Up to 1162 conditions per place. [2021-03-25 07:54:05,770 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 1093 selfloop transitions, 59 changer transitions 3/1160 dead transitions. [2021-03-25 07:54:05,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 837 places, 1160 transitions, 38862 flow [2021-03-25 07:54:05,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:54:05,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:54:05,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2021-03-25 07:54:05,771 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4782608695652174 [2021-03-25 07:54:05,771 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 231 transitions. [2021-03-25 07:54:05,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 231 transitions. [2021-03-25 07:54:05,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:05,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 231 transitions. [2021-03-25 07:54:05,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.0) internal successors, (231), 7 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:05,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:05,772 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:05,772 INFO L185 Difference]: Start difference. First operand has 831 places, 1154 transitions, 36376 flow. Second operand 7 states and 231 transitions. [2021-03-25 07:54:05,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 837 places, 1160 transitions, 38862 flow [2021-03-25 07:54:07,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 829 places, 1160 transitions, 38692 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-03-25 07:54:07,865 INFO L241 Difference]: Finished difference. Result has 831 places, 1153 transitions, 36290 flow [2021-03-25 07:54:07,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=36206, PETRI_DIFFERENCE_MINUEND_PLACES=823, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1095, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=36290, PETRI_PLACES=831, PETRI_TRANSITIONS=1153} [2021-03-25 07:54:07,865 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 800 predicate places. [2021-03-25 07:54:07,865 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:07,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 831 places, 1153 transitions, 36290 flow [2021-03-25 07:54:07,865 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 831 places, 1153 transitions, 36290 flow [2021-03-25 07:54:07,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 831 places, 1153 transitions, 36290 flow [2021-03-25 07:54:08,373 INFO L129 PetriNetUnfolder]: 597/1403 cut-off events. [2021-03-25 07:54:08,374 INFO L130 PetriNetUnfolder]: For 149197/149285 co-relation queries the response was YES. [2021-03-25 07:54:08,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21450 conditions, 1403 events. 597/1403 cut-off events. For 149197/149285 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 11230 event pairs, 0 based on Foata normal form. 28/1431 useless extension candidates. Maximal degree in co-relation 21001. Up to 434 conditions per place. [2021-03-25 07:54:08,431 INFO L142 LiptonReduction]: Number of co-enabled transitions 1644 [2021-03-25 07:54:08,572 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:08,572 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:08,572 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 707 [2021-03-25 07:54:08,572 INFO L480 AbstractCegarLoop]: Abstraction has has 831 places, 1153 transitions, 36290 flow [2021-03-25 07:54:08,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:08,573 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:08,573 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:08,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-03-25 07:54:08,573 INFO L428 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:08,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:08,573 INFO L82 PathProgramCache]: Analyzing trace with hash 132488249, now seen corresponding path program 10 times [2021-03-25 07:54:08,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:08,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984152292] [2021-03-25 07:54:08,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:08,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:08,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:08,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:08,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:08,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:08,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:08,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:08,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:08,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:08,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:08,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:08,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:08,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:08,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:08,636 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:08,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:08,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:08,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984152292] [2021-03-25 07:54:08,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:08,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:54:08,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555062020] [2021-03-25 07:54:08,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:54:08,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:08,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:54:08,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:54:08,639 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2021-03-25 07:54:08,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 1153 transitions, 36290 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:08,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:08,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2021-03-25 07:54:08,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:09,664 INFO L129 PetriNetUnfolder]: 607/1406 cut-off events. [2021-03-25 07:54:09,664 INFO L130 PetriNetUnfolder]: For 161561/161576 co-relation queries the response was YES. [2021-03-25 07:54:09,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23521 conditions, 1406 events. 607/1406 cut-off events. For 161561/161576 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 10942 event pairs, 1 based on Foata normal form. 15/1421 useless extension candidates. Maximal degree in co-relation 22921. Up to 1142 conditions per place. [2021-03-25 07:54:09,707 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 1058 selfloop transitions, 91 changer transitions 4/1158 dead transitions. [2021-03-25 07:54:09,708 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 838 places, 1158 transitions, 38744 flow [2021-03-25 07:54:09,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:54:09,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:54:09,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:54:09,708 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4746376811594203 [2021-03-25 07:54:09,708 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:54:09,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:54:09,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:09,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:54:09,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:09,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:09,709 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:09,709 INFO L185 Difference]: Start difference. First operand has 831 places, 1153 transitions, 36290 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:54:09,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 838 places, 1158 transitions, 38744 flow [2021-03-25 07:54:11,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 832 places, 1158 transitions, 38626 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-25 07:54:11,752 INFO L241 Difference]: Finished difference. Result has 834 places, 1150 transitions, 36327 flow [2021-03-25 07:54:11,752 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=36174, PETRI_DIFFERENCE_MINUEND_PLACES=825, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1062, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=36327, PETRI_PLACES=834, PETRI_TRANSITIONS=1150} [2021-03-25 07:54:11,752 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 803 predicate places. [2021-03-25 07:54:11,752 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:11,752 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 834 places, 1150 transitions, 36327 flow [2021-03-25 07:54:11,752 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 834 places, 1150 transitions, 36327 flow [2021-03-25 07:54:11,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 834 places, 1150 transitions, 36327 flow [2021-03-25 07:54:12,260 INFO L129 PetriNetUnfolder]: 596/1410 cut-off events. [2021-03-25 07:54:12,260 INFO L130 PetriNetUnfolder]: For 146219/146286 co-relation queries the response was YES. [2021-03-25 07:54:12,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21476 conditions, 1410 events. 596/1410 cut-off events. For 146219/146286 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 11343 event pairs, 0 based on Foata normal form. 23/1433 useless extension candidates. Maximal degree in co-relation 21026. Up to 433 conditions per place. [2021-03-25 07:54:12,319 INFO L142 LiptonReduction]: Number of co-enabled transitions 1644 [2021-03-25 07:54:12,476 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:12,476 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:12,476 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 724 [2021-03-25 07:54:12,476 INFO L480 AbstractCegarLoop]: Abstraction has has 834 places, 1150 transitions, 36327 flow [2021-03-25 07:54:12,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:12,477 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:12,477 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:12,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-03-25 07:54:12,477 INFO L428 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:12,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:12,477 INFO L82 PathProgramCache]: Analyzing trace with hash 759450839, now seen corresponding path program 11 times [2021-03-25 07:54:12,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:12,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416443934] [2021-03-25 07:54:12,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:12,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:12,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:12,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:12,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:12,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:12,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:12,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:12,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:12,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:12,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:54:12,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:12,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:12,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:12,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:12,513 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:12,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:12,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:12,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416443934] [2021-03-25 07:54:12,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:12,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:54:12,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767513788] [2021-03-25 07:54:12,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:54:12,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:12,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:54:12,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:54:12,516 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2021-03-25 07:54:12,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 834 places, 1150 transitions, 36327 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:12,516 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:12,516 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2021-03-25 07:54:12,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:13,772 INFO L129 PetriNetUnfolder]: 606/1401 cut-off events. [2021-03-25 07:54:13,773 INFO L130 PetriNetUnfolder]: For 161487/161512 co-relation queries the response was YES. [2021-03-25 07:54:13,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23523 conditions, 1401 events. 606/1401 cut-off events. For 161487/161512 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 10856 event pairs, 2 based on Foata normal form. 24/1425 useless extension candidates. Maximal degree in co-relation 22921. Up to 1158 conditions per place. [2021-03-25 07:54:13,804 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 1079 selfloop transitions, 67 changer transitions 3/1154 dead transitions. [2021-03-25 07:54:13,804 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 840 places, 1154 transitions, 38745 flow [2021-03-25 07:54:13,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:54:13,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:54:13,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2021-03-25 07:54:13,805 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2021-03-25 07:54:13,805 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 230 transitions. [2021-03-25 07:54:13,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 230 transitions. [2021-03-25 07:54:13,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:13,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 230 transitions. [2021-03-25 07:54:13,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.857142857142854) internal successors, (230), 7 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:13,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:13,806 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 69.0) internal successors, (552), 8 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:13,806 INFO L185 Difference]: Start difference. First operand has 834 places, 1150 transitions, 36327 flow. Second operand 7 states and 230 transitions. [2021-03-25 07:54:13,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 840 places, 1154 transitions, 38745 flow [2021-03-25 07:54:16,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 828 places, 1154 transitions, 38450 flow, removed 10 selfloop flow, removed 12 redundant places. [2021-03-25 07:54:16,028 INFO L241 Difference]: Finished difference. Result has 830 places, 1148 transitions, 36159 flow [2021-03-25 07:54:16,028 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=36036, PETRI_DIFFERENCE_MINUEND_PLACES=822, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1083, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=36159, PETRI_PLACES=830, PETRI_TRANSITIONS=1148} [2021-03-25 07:54:16,028 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 799 predicate places. [2021-03-25 07:54:16,029 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:16,029 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 830 places, 1148 transitions, 36159 flow [2021-03-25 07:54:16,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 830 places, 1148 transitions, 36159 flow [2021-03-25 07:54:16,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 830 places, 1148 transitions, 36159 flow [2021-03-25 07:54:16,569 INFO L129 PetriNetUnfolder]: 595/1398 cut-off events. [2021-03-25 07:54:16,569 INFO L130 PetriNetUnfolder]: For 140128/140195 co-relation queries the response was YES. [2021-03-25 07:54:16,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21353 conditions, 1398 events. 595/1398 cut-off events. For 140128/140195 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 11196 event pairs, 2 based on Foata normal form. 23/1421 useless extension candidates. Maximal degree in co-relation 20906. Up to 433 conditions per place. [2021-03-25 07:54:16,628 INFO L142 LiptonReduction]: Number of co-enabled transitions 1642 [2021-03-25 07:54:16,788 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:16,788 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:16,788 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 760 [2021-03-25 07:54:16,788 INFO L480 AbstractCegarLoop]: Abstraction has has 830 places, 1148 transitions, 36159 flow [2021-03-25 07:54:16,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:16,788 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:16,788 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:16,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-03-25 07:54:16,788 INFO L428 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:16,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:16,789 INFO L82 PathProgramCache]: Analyzing trace with hash -95855815, now seen corresponding path program 12 times [2021-03-25 07:54:16,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:16,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012500884] [2021-03-25 07:54:16,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:16,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:16,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:16,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:16,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:16,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:16,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:16,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:16,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:16,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:16,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:54:16,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:16,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:16,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:16,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:16,834 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:16,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:16,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:16,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012500884] [2021-03-25 07:54:16,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:16,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:54:16,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704589667] [2021-03-25 07:54:16,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:54:16,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:16,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:54:16,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:54:16,837 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2021-03-25 07:54:16,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 830 places, 1148 transitions, 36159 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:16,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:16,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2021-03-25 07:54:16,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:17,961 INFO L129 PetriNetUnfolder]: 605/1404 cut-off events. [2021-03-25 07:54:17,961 INFO L130 PetriNetUnfolder]: For 156996/157011 co-relation queries the response was YES. [2021-03-25 07:54:17,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23412 conditions, 1404 events. 605/1404 cut-off events. For 156996/157011 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 10927 event pairs, 1 based on Foata normal form. 15/1419 useless extension candidates. Maximal degree in co-relation 22812. Up to 1138 conditions per place. [2021-03-25 07:54:18,008 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 1042 selfloop transitions, 102 changer transitions 3/1152 dead transitions. [2021-03-25 07:54:18,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 837 places, 1152 transitions, 38571 flow [2021-03-25 07:54:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:54:18,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:54:18,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 261 transitions. [2021-03-25 07:54:18,009 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47282608695652173 [2021-03-25 07:54:18,009 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 261 transitions. [2021-03-25 07:54:18,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 261 transitions. [2021-03-25 07:54:18,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:18,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 261 transitions. [2021-03-25 07:54:18,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:18,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:18,010 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:18,010 INFO L185 Difference]: Start difference. First operand has 830 places, 1148 transitions, 36159 flow. Second operand 8 states and 261 transitions. [2021-03-25 07:54:18,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 837 places, 1152 transitions, 38571 flow [2021-03-25 07:54:20,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 831 places, 1152 transitions, 38439 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-25 07:54:20,029 INFO L241 Difference]: Finished difference. Result has 833 places, 1146 transitions, 36247 flow [2021-03-25 07:54:20,030 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=36029, PETRI_DIFFERENCE_MINUEND_PLACES=824, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1046, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=36247, PETRI_PLACES=833, PETRI_TRANSITIONS=1146} [2021-03-25 07:54:20,030 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 802 predicate places. [2021-03-25 07:54:20,030 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:20,030 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 833 places, 1146 transitions, 36247 flow [2021-03-25 07:54:20,030 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 833 places, 1146 transitions, 36247 flow [2021-03-25 07:54:20,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 833 places, 1146 transitions, 36247 flow [2021-03-25 07:54:20,555 INFO L129 PetriNetUnfolder]: 594/1414 cut-off events. [2021-03-25 07:54:20,555 INFO L130 PetriNetUnfolder]: For 139847/139883 co-relation queries the response was YES. [2021-03-25 07:54:20,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21396 conditions, 1414 events. 594/1414 cut-off events. For 139847/139883 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 11416 event pairs, 1 based on Foata normal form. 22/1435 useless extension candidates. Maximal degree in co-relation 20949. Up to 433 conditions per place. [2021-03-25 07:54:20,603 INFO L142 LiptonReduction]: Number of co-enabled transitions 1642 [2021-03-25 07:54:20,746 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:20,746 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:20,746 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 716 [2021-03-25 07:54:20,747 INFO L480 AbstractCegarLoop]: Abstraction has has 833 places, 1146 transitions, 36247 flow [2021-03-25 07:54:20,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:20,747 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:20,747 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:20,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-03-25 07:54:20,747 INFO L428 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:20,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:20,747 INFO L82 PathProgramCache]: Analyzing trace with hash -107154089, now seen corresponding path program 13 times [2021-03-25 07:54:20,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:20,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214465916] [2021-03-25 07:54:20,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:20,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:20,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:20,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:20,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:20,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:20,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:20,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:20,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:20,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:20,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:54:20,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:20,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:20,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:20,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:20,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:20,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:20,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214465916] [2021-03-25 07:54:20,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:20,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:54:20,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635697814] [2021-03-25 07:54:20,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:54:20,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:20,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:54:20,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:54:20,793 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2021-03-25 07:54:20,793 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 833 places, 1146 transitions, 36247 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:20,793 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:20,793 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2021-03-25 07:54:20,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:21,844 INFO L129 PetriNetUnfolder]: 604/1401 cut-off events. [2021-03-25 07:54:21,844 INFO L130 PetriNetUnfolder]: For 162383/162408 co-relation queries the response was YES. [2021-03-25 07:54:21,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23448 conditions, 1401 events. 604/1401 cut-off events. For 162383/162408 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 10876 event pairs, 3 based on Foata normal form. 24/1425 useless extension candidates. Maximal degree in co-relation 22848. Up to 1114 conditions per place. [2021-03-25 07:54:21,888 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 1041 selfloop transitions, 98 changer transitions 7/1151 dead transitions. [2021-03-25 07:54:21,888 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 840 places, 1151 transitions, 38683 flow [2021-03-25 07:54:21,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:54:21,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:54:21,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:54:21,889 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4746376811594203 [2021-03-25 07:54:21,889 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:54:21,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:54:21,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:21,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:54:21,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:21,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:21,890 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:21,890 INFO L185 Difference]: Start difference. First operand has 833 places, 1146 transitions, 36247 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:54:21,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 840 places, 1151 transitions, 38683 flow [2021-03-25 07:54:23,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 829 places, 1151 transitions, 38382 flow, removed 5 selfloop flow, removed 11 redundant places. [2021-03-25 07:54:23,831 INFO L241 Difference]: Finished difference. Result has 831 places, 1140 transitions, 35983 flow [2021-03-25 07:54:23,832 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=35948, PETRI_DIFFERENCE_MINUEND_PLACES=822, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1048, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=35983, PETRI_PLACES=831, PETRI_TRANSITIONS=1140} [2021-03-25 07:54:23,832 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 800 predicate places. [2021-03-25 07:54:23,832 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:23,832 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 831 places, 1140 transitions, 35983 flow [2021-03-25 07:54:23,832 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 831 places, 1140 transitions, 35983 flow [2021-03-25 07:54:23,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 831 places, 1140 transitions, 35983 flow [2021-03-25 07:54:24,329 INFO L129 PetriNetUnfolder]: 592/1388 cut-off events. [2021-03-25 07:54:24,329 INFO L130 PetriNetUnfolder]: For 143793/143879 co-relation queries the response was YES. [2021-03-25 07:54:24,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21220 conditions, 1388 events. 592/1388 cut-off events. For 143793/143879 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 11010 event pairs, 3 based on Foata normal form. 28/1415 useless extension candidates. Maximal degree in co-relation 20774. Up to 431 conditions per place. [2021-03-25 07:54:24,387 INFO L142 LiptonReduction]: Number of co-enabled transitions 1642 [2021-03-25 07:54:24,540 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:24,540 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:24,540 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 708 [2021-03-25 07:54:24,541 INFO L480 AbstractCegarLoop]: Abstraction has has 831 places, 1140 transitions, 35983 flow [2021-03-25 07:54:24,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:24,541 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:24,541 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:24,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-03-25 07:54:24,541 INFO L428 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:24,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:24,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1186702261, now seen corresponding path program 14 times [2021-03-25 07:54:24,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:24,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096362149] [2021-03-25 07:54:24,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:24,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:24,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:24,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:24,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:24,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:24,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:24,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:24,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:24,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:24,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:24,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:24,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:24,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:24,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:24,587 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:24,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:24,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:24,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096362149] [2021-03-25 07:54:24,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:24,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:54:24,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609315070] [2021-03-25 07:54:24,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:54:24,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:24,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:54:24,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:54:24,591 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2021-03-25 07:54:24,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 1140 transitions, 35983 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:24,591 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:24,591 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2021-03-25 07:54:24,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:25,751 INFO L129 PetriNetUnfolder]: 602/1398 cut-off events. [2021-03-25 07:54:25,751 INFO L130 PetriNetUnfolder]: For 158839/158864 co-relation queries the response was YES. [2021-03-25 07:54:25,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23305 conditions, 1398 events. 602/1398 cut-off events. For 158839/158864 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 10883 event pairs, 5 based on Foata normal form. 24/1422 useless extension candidates. Maximal degree in co-relation 22706. Up to 1114 conditions per place. [2021-03-25 07:54:25,782 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 1044 selfloop transitions, 93 changer transitions 4/1146 dead transitions. [2021-03-25 07:54:25,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 838 places, 1146 transitions, 38419 flow [2021-03-25 07:54:25,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:54:25,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:54:25,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:54:25,783 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4746376811594203 [2021-03-25 07:54:25,783 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:54:25,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:54:25,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:25,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:54:25,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:25,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:25,784 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:25,784 INFO L185 Difference]: Start difference. First operand has 831 places, 1140 transitions, 35983 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:54:25,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 838 places, 1146 transitions, 38419 flow [2021-03-25 07:54:27,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 823 places, 1146 transitions, 38117 flow, removed 4 selfloop flow, removed 15 redundant places. [2021-03-25 07:54:27,658 INFO L241 Difference]: Finished difference. Result has 826 places, 1138 transitions, 35890 flow [2021-03-25 07:54:27,659 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=35681, PETRI_DIFFERENCE_MINUEND_PLACES=816, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1047, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=35890, PETRI_PLACES=826, PETRI_TRANSITIONS=1138} [2021-03-25 07:54:27,659 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 795 predicate places. [2021-03-25 07:54:27,659 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:27,659 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 826 places, 1138 transitions, 35890 flow [2021-03-25 07:54:27,659 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 826 places, 1138 transitions, 35890 flow [2021-03-25 07:54:27,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 826 places, 1138 transitions, 35890 flow [2021-03-25 07:54:28,146 INFO L129 PetriNetUnfolder]: 591/1394 cut-off events. [2021-03-25 07:54:28,146 INFO L130 PetriNetUnfolder]: For 140230/140318 co-relation queries the response was YES. [2021-03-25 07:54:28,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21178 conditions, 1394 events. 591/1394 cut-off events. For 140230/140318 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 11121 event pairs, 2 based on Foata normal form. 28/1421 useless extension candidates. Maximal degree in co-relation 20734. Up to 430 conditions per place. [2021-03-25 07:54:28,203 INFO L142 LiptonReduction]: Number of co-enabled transitions 1642 [2021-03-25 07:54:28,359 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:28,359 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:28,359 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 700 [2021-03-25 07:54:28,360 INFO L480 AbstractCegarLoop]: Abstraction has has 826 places, 1138 transitions, 35890 flow [2021-03-25 07:54:28,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:28,360 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:28,360 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:28,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-03-25 07:54:28,360 INFO L428 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:28,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:28,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1875438605, now seen corresponding path program 15 times [2021-03-25 07:54:28,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:28,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065491238] [2021-03-25 07:54:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:28,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:28,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:28,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:28,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:28,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:28,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:28,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:28,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:28,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:28,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:54:28,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:28,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:28,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:28,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:28,410 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:28,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:28,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065491238] [2021-03-25 07:54:28,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:28,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:54:28,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254639170] [2021-03-25 07:54:28,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:54:28,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:28,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:54:28,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:54:28,413 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2021-03-25 07:54:28,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 826 places, 1138 transitions, 35890 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:28,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:28,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2021-03-25 07:54:28,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:29,482 INFO L129 PetriNetUnfolder]: 601/1393 cut-off events. [2021-03-25 07:54:29,482 INFO L130 PetriNetUnfolder]: For 157777/157802 co-relation queries the response was YES. [2021-03-25 07:54:29,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23223 conditions, 1393 events. 601/1393 cut-off events. For 157777/157802 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 10821 event pairs, 2 based on Foata normal form. 24/1417 useless extension candidates. Maximal degree in co-relation 22626. Up to 1112 conditions per place. [2021-03-25 07:54:29,526 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 1017 selfloop transitions, 116 changer transitions 5/1143 dead transitions. [2021-03-25 07:54:29,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 833 places, 1143 transitions, 38286 flow [2021-03-25 07:54:29,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:54:29,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:54:29,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:54:29,527 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4746376811594203 [2021-03-25 07:54:29,527 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:54:29,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:54:29,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:29,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:54:29,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:29,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:29,528 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:29,528 INFO L185 Difference]: Start difference. First operand has 826 places, 1138 transitions, 35890 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:54:29,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 833 places, 1143 transitions, 38286 flow [2021-03-25 07:54:31,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 824 places, 1143 transitions, 38038 flow, removed 3 selfloop flow, removed 9 redundant places. [2021-03-25 07:54:31,590 INFO L241 Difference]: Finished difference. Result has 826 places, 1134 transitions, 35831 flow [2021-03-25 07:54:31,590 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=35644, PETRI_DIFFERENCE_MINUEND_PLACES=817, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1022, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=35831, PETRI_PLACES=826, PETRI_TRANSITIONS=1134} [2021-03-25 07:54:31,590 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 795 predicate places. [2021-03-25 07:54:31,590 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:31,590 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 826 places, 1134 transitions, 35831 flow [2021-03-25 07:54:31,590 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 826 places, 1134 transitions, 35831 flow [2021-03-25 07:54:31,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 826 places, 1134 transitions, 35831 flow [2021-03-25 07:54:32,080 INFO L129 PetriNetUnfolder]: 589/1396 cut-off events. [2021-03-25 07:54:32,080 INFO L130 PetriNetUnfolder]: For 141821/141856 co-relation queries the response was YES. [2021-03-25 07:54:32,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21153 conditions, 1396 events. 589/1396 cut-off events. For 141821/141856 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 11223 event pairs, 0 based on Foata normal form. 22/1415 useless extension candidates. Maximal degree in co-relation 20709. Up to 429 conditions per place. [2021-03-25 07:54:32,142 INFO L142 LiptonReduction]: Number of co-enabled transitions 1638 [2021-03-25 07:54:32,293 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:32,293 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:32,293 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 703 [2021-03-25 07:54:32,294 INFO L480 AbstractCegarLoop]: Abstraction has has 826 places, 1134 transitions, 35831 flow [2021-03-25 07:54:32,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:32,294 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:32,294 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:32,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-03-25 07:54:32,294 INFO L428 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:32,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:32,294 INFO L82 PathProgramCache]: Analyzing trace with hash -155905607, now seen corresponding path program 16 times [2021-03-25 07:54:32,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:32,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480594375] [2021-03-25 07:54:32,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:32,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:32,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:32,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:32,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:32,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:32,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:32,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:32,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:32,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:32,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:54:32,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:32,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:32,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:32,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:32,358 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:32,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:32,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:32,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480594375] [2021-03-25 07:54:32,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:32,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:54:32,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947823075] [2021-03-25 07:54:32,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:54:32,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:32,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:54:32,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:54:32,361 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2021-03-25 07:54:32,361 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 826 places, 1134 transitions, 35831 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:32,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:32,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2021-03-25 07:54:32,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:33,296 INFO L129 PetriNetUnfolder]: 599/1388 cut-off events. [2021-03-25 07:54:33,296 INFO L130 PetriNetUnfolder]: For 157594/157619 co-relation queries the response was YES. [2021-03-25 07:54:33,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23183 conditions, 1388 events. 599/1388 cut-off events. For 157594/157619 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 10713 event pairs, 4 based on Foata normal form. 24/1412 useless extension candidates. Maximal degree in co-relation 22586. Up to 1135 conditions per place. [2021-03-25 07:54:33,337 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 1061 selfloop transitions, 67 changer transitions 6/1139 dead transitions. [2021-03-25 07:54:33,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 833 places, 1139 transitions, 38219 flow [2021-03-25 07:54:33,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:54:33,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:54:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:54:33,338 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4746376811594203 [2021-03-25 07:54:33,338 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:54:33,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:54:33,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:33,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:54:33,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:33,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:33,339 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:33,340 INFO L185 Difference]: Start difference. First operand has 826 places, 1134 transitions, 35831 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:54:33,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 833 places, 1139 transitions, 38219 flow [2021-03-25 07:54:35,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 822 places, 1139 transitions, 37889 flow, removed 3 selfloop flow, removed 11 redundant places. [2021-03-25 07:54:35,407 INFO L241 Difference]: Finished difference. Result has 824 places, 1129 transitions, 35463 flow [2021-03-25 07:54:35,408 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=35503, PETRI_DIFFERENCE_MINUEND_PLACES=815, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1067, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=35463, PETRI_PLACES=824, PETRI_TRANSITIONS=1129} [2021-03-25 07:54:35,408 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 793 predicate places. [2021-03-25 07:54:35,408 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:35,408 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 824 places, 1129 transitions, 35463 flow [2021-03-25 07:54:35,408 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 824 places, 1129 transitions, 35463 flow [2021-03-25 07:54:35,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 824 places, 1129 transitions, 35463 flow [2021-03-25 07:54:35,893 INFO L129 PetriNetUnfolder]: 588/1390 cut-off events. [2021-03-25 07:54:35,893 INFO L130 PetriNetUnfolder]: For 137156/137190 co-relation queries the response was YES. [2021-03-25 07:54:35,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20963 conditions, 1390 events. 588/1390 cut-off events. For 137156/137190 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 11163 event pairs, 3 based on Foata normal form. 21/1410 useless extension candidates. Maximal degree in co-relation 20519. Up to 427 conditions per place. [2021-03-25 07:54:35,953 INFO L142 LiptonReduction]: Number of co-enabled transitions 1638 [2021-03-25 07:54:36,309 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 07:54:36,309 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:54:36,309 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 901 [2021-03-25 07:54:36,309 INFO L480 AbstractCegarLoop]: Abstraction has has 824 places, 1129 transitions, 35537 flow [2021-03-25 07:54:36,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:36,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:36,309 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:36,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-03-25 07:54:36,309 INFO L428 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:36,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:36,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1514573223, now seen corresponding path program 1 times [2021-03-25 07:54:36,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:36,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598917999] [2021-03-25 07:54:36,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:36,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:36,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:36,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:36,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:36,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:36,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:36,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:36,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:36,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:36,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:36,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:36,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:36,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:36,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:36,344 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:36,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:36,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:36,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598917999] [2021-03-25 07:54:36,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:36,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:54:36,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703669448] [2021-03-25 07:54:36,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:54:36,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:36,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:54:36,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:54:36,348 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:54:36,348 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 824 places, 1129 transitions, 35537 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:36,348 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:36,348 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:54:36,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:37,648 INFO L129 PetriNetUnfolder]: 761/1688 cut-off events. [2021-03-25 07:54:37,649 INFO L130 PetriNetUnfolder]: For 194926/194926 co-relation queries the response was YES. [2021-03-25 07:54:37,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27551 conditions, 1688 events. 761/1688 cut-off events. For 194926/194926 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 13031 event pairs, 7 based on Foata normal form. 1/1686 useless extension candidates. Maximal degree in co-relation 26955. Up to 1399 conditions per place. [2021-03-25 07:54:37,698 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1046 selfloop transitions, 69 changer transitions 22/1142 dead transitions. [2021-03-25 07:54:37,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 830 places, 1142 transitions, 38507 flow [2021-03-25 07:54:37,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:54:37,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:54:37,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:54:37,699 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47551020408163264 [2021-03-25 07:54:37,699 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:54:37,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:54:37,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:37,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:54:37,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:37,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:37,700 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:37,700 INFO L185 Difference]: Start difference. First operand has 824 places, 1129 transitions, 35537 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:54:37,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 830 places, 1142 transitions, 38507 flow [2021-03-25 07:54:39,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 811 places, 1142 transitions, 38132 flow, removed 40 selfloop flow, removed 19 redundant places. [2021-03-25 07:54:40,001 INFO L241 Difference]: Finished difference. Result has 816 places, 1114 transitions, 34897 flow [2021-03-25 07:54:40,002 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=35166, PETRI_DIFFERENCE_MINUEND_PLACES=805, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1060, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=34897, PETRI_PLACES=816, PETRI_TRANSITIONS=1114} [2021-03-25 07:54:40,002 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 785 predicate places. [2021-03-25 07:54:40,002 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:40,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 816 places, 1114 transitions, 34897 flow [2021-03-25 07:54:40,002 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 816 places, 1114 transitions, 34897 flow [2021-03-25 07:54:40,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 816 places, 1114 transitions, 34897 flow [2021-03-25 07:54:40,481 INFO L129 PetriNetUnfolder]: 580/1371 cut-off events. [2021-03-25 07:54:40,482 INFO L130 PetriNetUnfolder]: For 138571/138609 co-relation queries the response was YES. [2021-03-25 07:54:40,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20705 conditions, 1371 events. 580/1371 cut-off events. For 138571/138609 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 10915 event pairs, 3 based on Foata normal form. 16/1387 useless extension candidates. Maximal degree in co-relation 20261. Up to 420 conditions per place. [2021-03-25 07:54:40,540 INFO L142 LiptonReduction]: Number of co-enabled transitions 1580 [2021-03-25 07:54:40,694 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:40,695 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:40,695 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 693 [2021-03-25 07:54:40,695 INFO L480 AbstractCegarLoop]: Abstraction has has 816 places, 1114 transitions, 34897 flow [2021-03-25 07:54:40,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:40,695 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:40,695 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:40,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-03-25 07:54:40,695 INFO L428 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:40,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:40,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1536653904, now seen corresponding path program 1 times [2021-03-25 07:54:40,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:40,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609062891] [2021-03-25 07:54:40,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:40,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:40,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:40,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:40,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:40,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:40,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:40,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:40,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:40,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:40,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:40,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:40,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:40,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:40,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:40,723 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:40,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:40,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:40,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609062891] [2021-03-25 07:54:40,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:40,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:54:40,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488277779] [2021-03-25 07:54:40,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:54:40,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:40,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:54:40,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:54:40,726 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:54:40,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 816 places, 1114 transitions, 34897 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:40,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:40,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:54:40,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:41,901 INFO L129 PetriNetUnfolder]: 749/1656 cut-off events. [2021-03-25 07:54:41,901 INFO L130 PetriNetUnfolder]: For 195994/195994 co-relation queries the response was YES. [2021-03-25 07:54:41,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26873 conditions, 1656 events. 749/1656 cut-off events. For 195994/195994 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 12648 event pairs, 3 based on Foata normal form. 1/1657 useless extension candidates. Maximal degree in co-relation 26277. Up to 1419 conditions per place. [2021-03-25 07:54:41,950 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1085 selfloop transitions, 29 changer transitions 5/1124 dead transitions. [2021-03-25 07:54:41,950 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 821 places, 1124 transitions, 37623 flow [2021-03-25 07:54:41,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:54:41,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:54:41,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:54:41,951 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48095238095238096 [2021-03-25 07:54:41,951 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:54:41,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:54:41,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:41,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:54:41,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:41,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:41,951 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:41,951 INFO L185 Difference]: Start difference. First operand has 816 places, 1114 transitions, 34897 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:54:41,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 821 places, 1124 transitions, 37623 flow [2021-03-25 07:54:43,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 815 places, 1124 transitions, 37521 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-03-25 07:54:43,854 INFO L241 Difference]: Finished difference. Result has 819 places, 1113 transitions, 34956 flow [2021-03-25 07:54:43,855 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34795, PETRI_DIFFERENCE_MINUEND_PLACES=810, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1085, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=34956, PETRI_PLACES=819, PETRI_TRANSITIONS=1113} [2021-03-25 07:54:43,855 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 788 predicate places. [2021-03-25 07:54:43,855 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:43,855 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 819 places, 1113 transitions, 34956 flow [2021-03-25 07:54:43,855 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 819 places, 1113 transitions, 34956 flow [2021-03-25 07:54:43,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 819 places, 1113 transitions, 34956 flow [2021-03-25 07:54:44,346 INFO L129 PetriNetUnfolder]: 579/1372 cut-off events. [2021-03-25 07:54:44,346 INFO L130 PetriNetUnfolder]: For 140467/140514 co-relation queries the response was YES. [2021-03-25 07:54:44,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20758 conditions, 1372 events. 579/1372 cut-off events. For 140467/140514 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 10937 event pairs, 3 based on Foata normal form. 22/1392 useless extension candidates. Maximal degree in co-relation 20312. Up to 419 conditions per place. [2021-03-25 07:54:44,403 INFO L142 LiptonReduction]: Number of co-enabled transitions 1580 [2021-03-25 07:54:44,609 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:44,610 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:44,610 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 755 [2021-03-25 07:54:44,610 INFO L480 AbstractCegarLoop]: Abstraction has has 819 places, 1113 transitions, 34956 flow [2021-03-25 07:54:44,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:44,610 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:44,610 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:44,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-03-25 07:54:44,610 INFO L428 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:44,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:44,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1900033508, now seen corresponding path program 2 times [2021-03-25 07:54:44,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:44,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168480995] [2021-03-25 07:54:44,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:44,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:44,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:44,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:44,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:44,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:44,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:44,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:44,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:44,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:44,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:44,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:44,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:44,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:44,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:44,645 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:44,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:44,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:44,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168480995] [2021-03-25 07:54:44,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:44,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:54:44,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128366227] [2021-03-25 07:54:44,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:54:44,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:44,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:54:44,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:54:44,648 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:54:44,648 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 819 places, 1113 transitions, 34956 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:44,648 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:44,648 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:54:44,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:45,757 INFO L129 PetriNetUnfolder]: 748/1656 cut-off events. [2021-03-25 07:54:45,757 INFO L130 PetriNetUnfolder]: For 202790/202790 co-relation queries the response was YES. [2021-03-25 07:54:45,796 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27016 conditions, 1656 events. 748/1656 cut-off events. For 202790/202790 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 12703 event pairs, 3 based on Foata normal form. 1/1657 useless extension candidates. Maximal degree in co-relation 26419. Up to 1401 conditions per place. [2021-03-25 07:54:45,805 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1055 selfloop transitions, 52 changer transitions 13/1125 dead transitions. [2021-03-25 07:54:45,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 825 places, 1125 transitions, 37857 flow [2021-03-25 07:54:45,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:54:45,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:54:45,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:54:45,806 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47551020408163264 [2021-03-25 07:54:45,806 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:54:45,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:54:45,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:45,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:54:45,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:45,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:45,807 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:45,808 INFO L185 Difference]: Start difference. First operand has 819 places, 1113 transitions, 34956 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:54:45,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 825 places, 1125 transitions, 37857 flow [2021-03-25 07:54:47,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 821 places, 1125 transitions, 37721 flow, removed 44 selfloop flow, removed 4 redundant places. [2021-03-25 07:54:47,991 INFO L241 Difference]: Finished difference. Result has 826 places, 1106 transitions, 34662 flow [2021-03-25 07:54:47,991 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34822, PETRI_DIFFERENCE_MINUEND_PLACES=815, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1061, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=34662, PETRI_PLACES=826, PETRI_TRANSITIONS=1106} [2021-03-25 07:54:47,991 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 795 predicate places. [2021-03-25 07:54:47,991 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:47,991 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 826 places, 1106 transitions, 34662 flow [2021-03-25 07:54:47,991 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 826 places, 1106 transitions, 34662 flow [2021-03-25 07:54:48,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 826 places, 1106 transitions, 34662 flow [2021-03-25 07:54:48,476 INFO L129 PetriNetUnfolder]: 576/1370 cut-off events. [2021-03-25 07:54:48,476 INFO L130 PetriNetUnfolder]: For 146678/146760 co-relation queries the response was YES. [2021-03-25 07:54:48,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20637 conditions, 1370 events. 576/1370 cut-off events. For 146678/146760 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 10901 event pairs, 1 based on Foata normal form. 21/1391 useless extension candidates. Maximal degree in co-relation 20188. Up to 415 conditions per place. [2021-03-25 07:54:48,534 INFO L142 LiptonReduction]: Number of co-enabled transitions 1550 [2021-03-25 07:54:48,677 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:48,677 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:48,677 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 686 [2021-03-25 07:54:48,677 INFO L480 AbstractCegarLoop]: Abstraction has has 826 places, 1106 transitions, 34662 flow [2021-03-25 07:54:48,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:48,677 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:48,678 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:48,678 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-03-25 07:54:48,678 INFO L428 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:48,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:48,678 INFO L82 PathProgramCache]: Analyzing trace with hash -301227748, now seen corresponding path program 3 times [2021-03-25 07:54:48,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:48,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329457617] [2021-03-25 07:54:48,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:48,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:48,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:48,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:48,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:48,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:48,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:48,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:48,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:48,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:48,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:48,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:48,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:48,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:48,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:48,708 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:48,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:48,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329457617] [2021-03-25 07:54:48,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:48,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:54:48,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332850533] [2021-03-25 07:54:48,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:54:48,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:48,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:54:48,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:54:48,711 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:54:48,711 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 826 places, 1106 transitions, 34662 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:48,711 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:48,711 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:54:48,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:49,911 INFO L129 PetriNetUnfolder]: 741/1641 cut-off events. [2021-03-25 07:54:49,911 INFO L130 PetriNetUnfolder]: For 193508/193508 co-relation queries the response was YES. [2021-03-25 07:54:49,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26483 conditions, 1641 events. 741/1641 cut-off events. For 193508/193508 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 12575 event pairs, 3 based on Foata normal form. 1/1642 useless extension candidates. Maximal degree in co-relation 25883. Up to 1405 conditions per place. [2021-03-25 07:54:49,945 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1073 selfloop transitions, 32 changer transitions 3/1113 dead transitions. [2021-03-25 07:54:49,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 831 places, 1113 transitions, 37040 flow [2021-03-25 07:54:49,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:54:49,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:54:49,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:54:49,946 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48095238095238096 [2021-03-25 07:54:49,946 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:54:49,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:54:49,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:49,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:54:49,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:49,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:49,947 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:49,947 INFO L185 Difference]: Start difference. First operand has 826 places, 1106 transitions, 34662 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:54:49,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 831 places, 1113 transitions, 37040 flow [2021-03-25 07:54:52,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 820 places, 1113 transitions, 36867 flow, removed 11 selfloop flow, removed 11 redundant places. [2021-03-25 07:54:52,090 INFO L241 Difference]: Finished difference. Result has 822 places, 1104 transitions, 34536 flow [2021-03-25 07:54:52,090 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34495, PETRI_DIFFERENCE_MINUEND_PLACES=815, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1074, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=34536, PETRI_PLACES=822, PETRI_TRANSITIONS=1104} [2021-03-25 07:54:52,090 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 791 predicate places. [2021-03-25 07:54:52,091 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:52,091 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 822 places, 1104 transitions, 34536 flow [2021-03-25 07:54:52,091 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 822 places, 1104 transitions, 34536 flow [2021-03-25 07:54:52,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 822 places, 1104 transitions, 34536 flow [2021-03-25 07:54:52,560 INFO L129 PetriNetUnfolder]: 575/1330 cut-off events. [2021-03-25 07:54:52,560 INFO L130 PetriNetUnfolder]: For 139678/139738 co-relation queries the response was YES. [2021-03-25 07:54:52,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20480 conditions, 1330 events. 575/1330 cut-off events. For 139678/139738 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 10367 event pairs, 3 based on Foata normal form. 17/1346 useless extension candidates. Maximal degree in co-relation 20035. Up to 414 conditions per place. [2021-03-25 07:54:52,614 INFO L142 LiptonReduction]: Number of co-enabled transitions 1540 [2021-03-25 07:54:52,760 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:52,760 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:52,760 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 669 [2021-03-25 07:54:52,760 INFO L480 AbstractCegarLoop]: Abstraction has has 822 places, 1104 transitions, 34536 flow [2021-03-25 07:54:52,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:52,760 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:52,760 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:52,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-03-25 07:54:52,760 INFO L428 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:52,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:52,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1356504732, now seen corresponding path program 4 times [2021-03-25 07:54:52,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:52,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699820765] [2021-03-25 07:54:52,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:52,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:52,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:52,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:52,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:52,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:52,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:52,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:52,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:52,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:52,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:52,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:52,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:52,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:52,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:52,788 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:52,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:52,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:52,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699820765] [2021-03-25 07:54:52,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:52,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:54:52,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901670022] [2021-03-25 07:54:52,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:54:52,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:52,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:54:52,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:54:52,791 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:54:52,791 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 822 places, 1104 transitions, 34536 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:52,791 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:52,791 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:54:52,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:53,919 INFO L129 PetriNetUnfolder]: 741/1637 cut-off events. [2021-03-25 07:54:53,920 INFO L130 PetriNetUnfolder]: For 194080/194080 co-relation queries the response was YES. [2021-03-25 07:54:53,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26590 conditions, 1637 events. 741/1637 cut-off events. For 194080/194080 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 12474 event pairs, 2 based on Foata normal form. 1/1638 useless extension candidates. Maximal degree in co-relation 25993. Up to 1408 conditions per place. [2021-03-25 07:54:53,968 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1079 selfloop transitions, 28 changer transitions 3/1115 dead transitions. [2021-03-25 07:54:53,968 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 827 places, 1115 transitions, 37406 flow [2021-03-25 07:54:53,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:54:53,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:54:53,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 07:54:53,969 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48095238095238096 [2021-03-25 07:54:53,969 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 07:54:53,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 07:54:53,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:53,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 07:54:53,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:53,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:53,970 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:53,970 INFO L185 Difference]: Start difference. First operand has 822 places, 1104 transitions, 34536 flow. Second operand 6 states and 202 transitions. [2021-03-25 07:54:53,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 827 places, 1115 transitions, 37406 flow [2021-03-25 07:54:56,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 823 places, 1115 transitions, 37345 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 07:54:56,087 INFO L241 Difference]: Finished difference. Result has 826 places, 1106 transitions, 34828 flow [2021-03-25 07:54:56,088 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34477, PETRI_DIFFERENCE_MINUEND_PLACES=818, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1077, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=34828, PETRI_PLACES=826, PETRI_TRANSITIONS=1106} [2021-03-25 07:54:56,088 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 795 predicate places. [2021-03-25 07:54:56,088 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:56,088 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 826 places, 1106 transitions, 34828 flow [2021-03-25 07:54:56,088 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 826 places, 1106 transitions, 34828 flow [2021-03-25 07:54:56,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 826 places, 1106 transitions, 34828 flow [2021-03-25 07:54:56,643 INFO L129 PetriNetUnfolder]: 575/1354 cut-off events. [2021-03-25 07:54:56,643 INFO L130 PetriNetUnfolder]: For 143623/143683 co-relation queries the response was YES. [2021-03-25 07:54:56,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20656 conditions, 1354 events. 575/1354 cut-off events. For 143623/143683 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 10739 event pairs, 3 based on Foata normal form. 17/1370 useless extension candidates. Maximal degree in co-relation 20209. Up to 414 conditions per place. [2021-03-25 07:54:56,690 INFO L142 LiptonReduction]: Number of co-enabled transitions 1544 [2021-03-25 07:54:56,818 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:56,818 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:56,818 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 730 [2021-03-25 07:54:56,818 INFO L480 AbstractCegarLoop]: Abstraction has has 826 places, 1106 transitions, 34828 flow [2021-03-25 07:54:56,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:56,819 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:56,819 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:54:56,819 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-03-25 07:54:56,819 INFO L428 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:56,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:56,819 INFO L82 PathProgramCache]: Analyzing trace with hash -361838974, now seen corresponding path program 5 times [2021-03-25 07:54:56,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:56,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133159035] [2021-03-25 07:54:56,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:54:56,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:56,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:56,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:56,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:56,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:56,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:56,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:56,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:56,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:56,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:56,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:56,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:54:56,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:54:56,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:54:56,875 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:54:56,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:54:56,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:54:56,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133159035] [2021-03-25 07:54:56,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:54:56,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:54:56,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515985820] [2021-03-25 07:54:56,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:54:56,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:54:56,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:54:56,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:54:56,879 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:54:56,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 826 places, 1106 transitions, 34828 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:56,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:54:56,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:54:56,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:54:58,086 INFO L129 PetriNetUnfolder]: 739/1633 cut-off events. [2021-03-25 07:54:58,086 INFO L130 PetriNetUnfolder]: For 193455/193455 co-relation queries the response was YES. [2021-03-25 07:54:58,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26503 conditions, 1633 events. 739/1633 cut-off events. For 193455/193455 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 12430 event pairs, 2 based on Foata normal form. 1/1634 useless extension candidates. Maximal degree in co-relation 25904. Up to 1385 conditions per place. [2021-03-25 07:54:58,133 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1036 selfloop transitions, 68 changer transitions 4/1113 dead transitions. [2021-03-25 07:54:58,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 832 places, 1113 transitions, 37202 flow [2021-03-25 07:54:58,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:54:58,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:54:58,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:54:58,134 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47551020408163264 [2021-03-25 07:54:58,134 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:54:58,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:54:58,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:54:58,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:54:58,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:58,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:58,135 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:54:58,135 INFO L185 Difference]: Start difference. First operand has 826 places, 1106 transitions, 34828 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:54:58,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 832 places, 1113 transitions, 37202 flow [2021-03-25 07:55:00,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 830 places, 1113 transitions, 37002 flow, removed 93 selfloop flow, removed 2 redundant places. [2021-03-25 07:55:00,374 INFO L241 Difference]: Finished difference. Result has 832 places, 1103 transitions, 34716 flow [2021-03-25 07:55:00,374 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34628, PETRI_DIFFERENCE_MINUEND_PLACES=824, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1038, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=34716, PETRI_PLACES=832, PETRI_TRANSITIONS=1103} [2021-03-25 07:55:00,374 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 801 predicate places. [2021-03-25 07:55:00,375 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:00,375 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 832 places, 1103 transitions, 34716 flow [2021-03-25 07:55:00,375 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 832 places, 1103 transitions, 34716 flow [2021-03-25 07:55:00,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 832 places, 1103 transitions, 34716 flow [2021-03-25 07:55:00,853 INFO L129 PetriNetUnfolder]: 574/1356 cut-off events. [2021-03-25 07:55:00,853 INFO L130 PetriNetUnfolder]: For 143098/143145 co-relation queries the response was YES. [2021-03-25 07:55:00,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20621 conditions, 1356 events. 574/1356 cut-off events. For 143098/143145 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 10776 event pairs, 0 based on Foata normal form. 22/1377 useless extension candidates. Maximal degree in co-relation 20172. Up to 413 conditions per place. [2021-03-25 07:55:00,911 INFO L142 LiptonReduction]: Number of co-enabled transitions 1536 [2021-03-25 07:55:01,053 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:01,053 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:01,053 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 678 [2021-03-25 07:55:01,053 INFO L480 AbstractCegarLoop]: Abstraction has has 832 places, 1103 transitions, 34716 flow [2021-03-25 07:55:01,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:01,053 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:01,053 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:01,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-03-25 07:55:01,053 INFO L428 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:01,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:01,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1759632054, now seen corresponding path program 6 times [2021-03-25 07:55:01,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:01,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289106995] [2021-03-25 07:55:01,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:01,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:01,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:01,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:01,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:01,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:01,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:01,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:01,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:01,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:01,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:01,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:01,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:01,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:01,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:01,090 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:01,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:01,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:01,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289106995] [2021-03-25 07:55:01,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:01,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:55:01,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179140790] [2021-03-25 07:55:01,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:55:01,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:01,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:55:01,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:55:01,093 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:01,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 832 places, 1103 transitions, 34716 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:01,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:01,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:01,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:02,395 INFO L129 PetriNetUnfolder]: 737/1637 cut-off events. [2021-03-25 07:55:02,395 INFO L130 PetriNetUnfolder]: For 191968/191968 co-relation queries the response was YES. [2021-03-25 07:55:02,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26480 conditions, 1637 events. 737/1637 cut-off events. For 191968/191968 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 12528 event pairs, 7 based on Foata normal form. 1/1638 useless extension candidates. Maximal degree in co-relation 25878. Up to 1361 conditions per place. [2021-03-25 07:55:02,446 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1045 selfloop transitions, 55 changer transitions 7/1112 dead transitions. [2021-03-25 07:55:02,446 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 838 places, 1112 transitions, 37111 flow [2021-03-25 07:55:02,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:55:02,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:55:02,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:55:02,447 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4775510204081633 [2021-03-25 07:55:02,447 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:55:02,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:55:02,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:02,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:55:02,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:02,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:02,448 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:02,448 INFO L185 Difference]: Start difference. First operand has 832 places, 1103 transitions, 34716 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:55:02,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 838 places, 1112 transitions, 37111 flow [2021-03-25 07:55:04,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 829 places, 1112 transitions, 36930 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 07:55:04,762 INFO L241 Difference]: Finished difference. Result has 831 places, 1098 transitions, 34522 flow [2021-03-25 07:55:04,762 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34539, PETRI_DIFFERENCE_MINUEND_PLACES=823, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1048, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=34522, PETRI_PLACES=831, PETRI_TRANSITIONS=1098} [2021-03-25 07:55:04,762 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 800 predicate places. [2021-03-25 07:55:04,762 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:04,762 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 831 places, 1098 transitions, 34522 flow [2021-03-25 07:55:04,762 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 831 places, 1098 transitions, 34522 flow [2021-03-25 07:55:04,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 831 places, 1098 transitions, 34522 flow [2021-03-25 07:55:05,260 INFO L129 PetriNetUnfolder]: 571/1343 cut-off events. [2021-03-25 07:55:05,260 INFO L130 PetriNetUnfolder]: For 140111/140114 co-relation queries the response was YES. [2021-03-25 07:55:05,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20505 conditions, 1343 events. 571/1343 cut-off events. For 140111/140114 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 10636 event pairs, 0 based on Foata normal form. 2/1343 useless extension candidates. Maximal degree in co-relation 20056. Up to 411 conditions per place. [2021-03-25 07:55:05,320 INFO L142 LiptonReduction]: Number of co-enabled transitions 1508 [2021-03-25 07:55:05,463 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:05,463 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:05,463 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 701 [2021-03-25 07:55:05,463 INFO L480 AbstractCegarLoop]: Abstraction has has 831 places, 1098 transitions, 34522 flow [2021-03-25 07:55:05,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:05,463 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:05,463 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:05,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-03-25 07:55:05,463 INFO L428 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:05,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:05,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1725179018, now seen corresponding path program 7 times [2021-03-25 07:55:05,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:05,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867369443] [2021-03-25 07:55:05,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:05,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:05,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:05,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:05,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:05,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:05,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:05,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:05,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:05,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:05,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:05,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:05,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:05,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:05,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:05,499 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:05,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:05,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:05,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867369443] [2021-03-25 07:55:05,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:05,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:55:05,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34596587] [2021-03-25 07:55:05,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:55:05,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:05,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:55:05,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:55:05,502 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:05,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 1098 transitions, 34522 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:05,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:05,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:05,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:06,729 INFO L129 PetriNetUnfolder]: 733/1623 cut-off events. [2021-03-25 07:55:06,730 INFO L130 PetriNetUnfolder]: For 197280/197280 co-relation queries the response was YES. [2021-03-25 07:55:06,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26591 conditions, 1623 events. 733/1623 cut-off events. For 197280/197280 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 12380 event pairs, 4 based on Foata normal form. 1/1624 useless extension candidates. Maximal degree in co-relation 25989. Up to 1361 conditions per place. [2021-03-25 07:55:06,780 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1048 selfloop transitions, 51 changer transitions 7/1111 dead transitions. [2021-03-25 07:55:06,780 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 837 places, 1111 transitions, 37472 flow [2021-03-25 07:55:06,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:55:06,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:55:06,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 07:55:06,781 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4775510204081633 [2021-03-25 07:55:06,781 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 07:55:06,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 07:55:06,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:06,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 07:55:06,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:06,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:06,781 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:06,782 INFO L185 Difference]: Start difference. First operand has 831 places, 1098 transitions, 34522 flow. Second operand 7 states and 234 transitions. [2021-03-25 07:55:06,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 837 places, 1111 transitions, 37472 flow [2021-03-25 07:55:09,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 829 places, 1111 transitions, 37329 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-03-25 07:55:09,123 INFO L241 Difference]: Finished difference. Result has 834 places, 1097 transitions, 34633 flow [2021-03-25 07:55:09,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34381, PETRI_DIFFERENCE_MINUEND_PLACES=823, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1098, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1047, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=34633, PETRI_PLACES=834, PETRI_TRANSITIONS=1097} [2021-03-25 07:55:09,124 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 803 predicate places. [2021-03-25 07:55:09,124 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:09,124 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 834 places, 1097 transitions, 34633 flow [2021-03-25 07:55:09,124 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 834 places, 1097 transitions, 34633 flow [2021-03-25 07:55:09,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 834 places, 1097 transitions, 34633 flow [2021-03-25 07:55:09,641 INFO L129 PetriNetUnfolder]: 570/1347 cut-off events. [2021-03-25 07:55:09,641 INFO L130 PetriNetUnfolder]: For 143120/143175 co-relation queries the response was YES. [2021-03-25 07:55:09,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20611 conditions, 1347 events. 570/1347 cut-off events. For 143120/143175 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 10696 event pairs, 3 based on Foata normal form. 19/1364 useless extension candidates. Maximal degree in co-relation 20160. Up to 410 conditions per place. [2021-03-25 07:55:09,689 INFO L142 LiptonReduction]: Number of co-enabled transitions 1508 [2021-03-25 07:55:09,816 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:09,816 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:09,816 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 692 [2021-03-25 07:55:09,817 INFO L480 AbstractCegarLoop]: Abstraction has has 834 places, 1097 transitions, 34633 flow [2021-03-25 07:55:09,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:09,817 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:09,817 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:09,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-03-25 07:55:09,817 INFO L428 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:09,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:09,817 INFO L82 PathProgramCache]: Analyzing trace with hash -866899134, now seen corresponding path program 8 times [2021-03-25 07:55:09,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:09,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243908970] [2021-03-25 07:55:09,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:09,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:09,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:09,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:09,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:09,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:09,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:09,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:09,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:09,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:09,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:09,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:09,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:09,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:09,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:09,859 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:09,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:09,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:09,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243908970] [2021-03-25 07:55:09,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:09,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:55:09,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641100255] [2021-03-25 07:55:09,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:55:09,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:09,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:55:09,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:55:09,862 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:09,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 834 places, 1097 transitions, 34633 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:09,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:09,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:09,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:11,043 INFO L129 PetriNetUnfolder]: 730/1616 cut-off events. [2021-03-25 07:55:11,043 INFO L130 PetriNetUnfolder]: For 192190/192190 co-relation queries the response was YES. [2021-03-25 07:55:11,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26416 conditions, 1616 events. 730/1616 cut-off events. For 192190/192190 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 12304 event pairs, 7 based on Foata normal form. 1/1617 useless extension candidates. Maximal degree in co-relation 25812. Up to 1337 conditions per place. [2021-03-25 07:55:11,091 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1006 selfloop transitions, 88 changer transitions 6/1105 dead transitions. [2021-03-25 07:55:11,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 841 places, 1105 transitions, 36995 flow [2021-03-25 07:55:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:55:11,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:55:11,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:55:11,092 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4732142857142857 [2021-03-25 07:55:11,093 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:55:11,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:55:11,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:11,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:55:11,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:11,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:11,094 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:11,094 INFO L185 Difference]: Start difference. First operand has 834 places, 1097 transitions, 34633 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:55:11,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 841 places, 1105 transitions, 36995 flow [2021-03-25 07:55:13,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 834 places, 1105 transitions, 36802 flow, removed 43 selfloop flow, removed 7 redundant places. [2021-03-25 07:55:13,409 INFO L241 Difference]: Finished difference. Result has 836 places, 1092 transitions, 34551 flow [2021-03-25 07:55:13,410 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34440, PETRI_DIFFERENCE_MINUEND_PLACES=827, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1097, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1009, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=34551, PETRI_PLACES=836, PETRI_TRANSITIONS=1092} [2021-03-25 07:55:13,410 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 805 predicate places. [2021-03-25 07:55:13,410 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:13,410 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 836 places, 1092 transitions, 34551 flow [2021-03-25 07:55:13,410 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 836 places, 1092 transitions, 34551 flow [2021-03-25 07:55:13,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 836 places, 1092 transitions, 34551 flow [2021-03-25 07:55:13,896 INFO L129 PetriNetUnfolder]: 568/1330 cut-off events. [2021-03-25 07:55:13,896 INFO L130 PetriNetUnfolder]: For 141437/141473 co-relation queries the response was YES. [2021-03-25 07:55:13,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20570 conditions, 1330 events. 568/1330 cut-off events. For 141437/141473 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 10428 event pairs, 3 based on Foata normal form. 15/1344 useless extension candidates. Maximal degree in co-relation 20118. Up to 408 conditions per place. [2021-03-25 07:55:13,968 INFO L142 LiptonReduction]: Number of co-enabled transitions 1488 [2021-03-25 07:55:14,108 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:14,109 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:14,109 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 699 [2021-03-25 07:55:14,109 INFO L480 AbstractCegarLoop]: Abstraction has has 836 places, 1092 transitions, 34551 flow [2021-03-25 07:55:14,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:14,109 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:14,109 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:14,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-03-25 07:55:14,109 INFO L428 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:14,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:14,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1938663166, now seen corresponding path program 9 times [2021-03-25 07:55:14,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:14,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957931326] [2021-03-25 07:55:14,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:14,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:14,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:14,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:14,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:14,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:14,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:14,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:14,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:14,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:14,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:55:14,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:14,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:14,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:14,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:14,157 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:14,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:14,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:14,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957931326] [2021-03-25 07:55:14,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:14,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:55:14,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549201971] [2021-03-25 07:55:14,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:55:14,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:14,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:55:14,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:55:14,160 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:14,160 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 836 places, 1092 transitions, 34551 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:14,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:14,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:14,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:15,535 INFO L129 PetriNetUnfolder]: 730/1618 cut-off events. [2021-03-25 07:55:15,535 INFO L130 PetriNetUnfolder]: For 201376/201376 co-relation queries the response was YES. [2021-03-25 07:55:15,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26861 conditions, 1618 events. 730/1618 cut-off events. For 201376/201376 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 12311 event pairs, 2 based on Foata normal form. 1/1619 useless extension candidates. Maximal degree in co-relation 26256. Up to 1375 conditions per place. [2021-03-25 07:55:15,578 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1037 selfloop transitions, 61 changer transitions 4/1107 dead transitions. [2021-03-25 07:55:15,578 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 843 places, 1107 transitions, 37925 flow [2021-03-25 07:55:15,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:55:15,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:55:15,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:55:15,579 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2021-03-25 07:55:15,579 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:55:15,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:55:15,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:15,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:55:15,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:15,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:15,580 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:15,580 INFO L185 Difference]: Start difference. First operand has 836 places, 1092 transitions, 34551 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:55:15,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 843 places, 1107 transitions, 37925 flow [2021-03-25 07:55:18,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 832 places, 1107 transitions, 37685 flow, removed 1 selfloop flow, removed 11 redundant places. [2021-03-25 07:55:18,408 INFO L241 Difference]: Finished difference. Result has 836 places, 1097 transitions, 35155 flow [2021-03-25 07:55:18,409 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34311, PETRI_DIFFERENCE_MINUEND_PLACES=825, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1092, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1033, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=35155, PETRI_PLACES=836, PETRI_TRANSITIONS=1097} [2021-03-25 07:55:18,409 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 805 predicate places. [2021-03-25 07:55:18,409 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:18,409 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 836 places, 1097 transitions, 35155 flow [2021-03-25 07:55:18,409 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 836 places, 1097 transitions, 35155 flow [2021-03-25 07:55:18,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 836 places, 1097 transitions, 35155 flow [2021-03-25 07:55:18,961 INFO L129 PetriNetUnfolder]: 570/1358 cut-off events. [2021-03-25 07:55:18,961 INFO L130 PetriNetUnfolder]: For 153333/153388 co-relation queries the response was YES. [2021-03-25 07:55:18,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20950 conditions, 1358 events. 570/1358 cut-off events. For 153333/153388 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 10771 event pairs, 3 based on Foata normal form. 19/1377 useless extension candidates. Maximal degree in co-relation 20495. Up to 410 conditions per place. [2021-03-25 07:55:19,028 INFO L142 LiptonReduction]: Number of co-enabled transitions 1500 [2021-03-25 07:55:19,184 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:19,184 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:19,184 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 775 [2021-03-25 07:55:19,185 INFO L480 AbstractCegarLoop]: Abstraction has has 836 places, 1097 transitions, 35155 flow [2021-03-25 07:55:19,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:19,185 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:19,185 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:19,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-03-25 07:55:19,185 INFO L428 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:19,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:19,185 INFO L82 PathProgramCache]: Analyzing trace with hash 2940996, now seen corresponding path program 10 times [2021-03-25 07:55:19,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:19,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344825662] [2021-03-25 07:55:19,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:19,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:19,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:19,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:19,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:19,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:19,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:19,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:19,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:19,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:19,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:55:19,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:19,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:19,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:19,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:19,223 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:19,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:19,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:19,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344825662] [2021-03-25 07:55:19,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:19,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:55:19,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086392877] [2021-03-25 07:55:19,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:55:19,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:19,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:55:19,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:55:19,226 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:19,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 836 places, 1097 transitions, 35155 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:19,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:19,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:19,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:20,440 INFO L129 PetriNetUnfolder]: 732/1619 cut-off events. [2021-03-25 07:55:20,441 INFO L130 PetriNetUnfolder]: For 213516/213516 co-relation queries the response was YES. [2021-03-25 07:55:20,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27162 conditions, 1619 events. 732/1619 cut-off events. For 213516/213516 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 12284 event pairs, 1 based on Foata normal form. 1/1620 useless extension candidates. Maximal degree in co-relation 26554. Up to 1381 conditions per place. [2021-03-25 07:55:20,488 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1048 selfloop transitions, 55 changer transitions 3/1111 dead transitions. [2021-03-25 07:55:20,488 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 842 places, 1111 transitions, 38451 flow [2021-03-25 07:55:20,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:55:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:55:20,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 07:55:20,489 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47551020408163264 [2021-03-25 07:55:20,489 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 07:55:20,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 07:55:20,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:20,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 07:55:20,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:20,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:20,490 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:20,490 INFO L185 Difference]: Start difference. First operand has 836 places, 1097 transitions, 35155 flow. Second operand 7 states and 233 transitions. [2021-03-25 07:55:20,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 842 places, 1111 transitions, 38451 flow [2021-03-25 07:55:22,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 837 places, 1111 transitions, 37836 flow, removed 272 selfloop flow, removed 5 redundant places. [2021-03-25 07:55:23,001 INFO L241 Difference]: Finished difference. Result has 841 places, 1102 transitions, 35393 flow [2021-03-25 07:55:23,002 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34540, PETRI_DIFFERENCE_MINUEND_PLACES=831, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1097, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1044, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=35393, PETRI_PLACES=841, PETRI_TRANSITIONS=1102} [2021-03-25 07:55:23,002 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 810 predicate places. [2021-03-25 07:55:23,002 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:23,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 841 places, 1102 transitions, 35393 flow [2021-03-25 07:55:23,002 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 841 places, 1102 transitions, 35393 flow [2021-03-25 07:55:23,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 841 places, 1102 transitions, 35393 flow [2021-03-25 07:55:23,511 INFO L129 PetriNetUnfolder]: 572/1340 cut-off events. [2021-03-25 07:55:23,511 INFO L130 PetriNetUnfolder]: For 159099/159159 co-relation queries the response was YES. [2021-03-25 07:55:23,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21107 conditions, 1340 events. 572/1340 cut-off events. For 159099/159159 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 10584 event pairs, 0 based on Foata normal form. 17/1356 useless extension candidates. Maximal degree in co-relation 20648. Up to 410 conditions per place. [2021-03-25 07:55:23,570 INFO L142 LiptonReduction]: Number of co-enabled transitions 1510 [2021-03-25 07:55:23,701 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:23,701 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:23,702 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 700 [2021-03-25 07:55:23,702 INFO L480 AbstractCegarLoop]: Abstraction has has 841 places, 1102 transitions, 35393 flow [2021-03-25 07:55:23,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:23,702 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:23,702 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:23,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-03-25 07:55:23,702 INFO L428 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:23,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:23,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1080383282, now seen corresponding path program 11 times [2021-03-25 07:55:23,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:23,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513403753] [2021-03-25 07:55:23,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:23,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:23,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:23,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:23,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:23,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:23,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:23,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:23,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:23,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:23,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:55:23,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:23,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:23,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:23,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:23,762 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:23,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:23,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513403753] [2021-03-25 07:55:23,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:23,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:55:23,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423575733] [2021-03-25 07:55:23,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:55:23,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:23,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:55:23,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:55:23,765 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:23,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 841 places, 1102 transitions, 35393 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:23,766 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:23,766 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:23,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:25,130 INFO L129 PetriNetUnfolder]: 734/1626 cut-off events. [2021-03-25 07:55:25,130 INFO L130 PetriNetUnfolder]: For 217415/217415 co-relation queries the response was YES. [2021-03-25 07:55:25,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27422 conditions, 1626 events. 734/1626 cut-off events. For 217415/217415 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 12411 event pairs, 2 based on Foata normal form. 1/1627 useless extension candidates. Maximal degree in co-relation 26809. Up to 1344 conditions per place. [2021-03-25 07:55:25,182 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1010 selfloop transitions, 93 changer transitions 10/1118 dead transitions. [2021-03-25 07:55:25,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 848 places, 1118 transitions, 38831 flow [2021-03-25 07:55:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:55:25,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:55:25,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:55:25,183 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4732142857142857 [2021-03-25 07:55:25,183 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:55:25,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:55:25,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:25,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:55:25,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:25,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:25,184 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:25,184 INFO L185 Difference]: Start difference. First operand has 841 places, 1102 transitions, 35393 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:55:25,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 848 places, 1118 transitions, 38831 flow [2021-03-25 07:55:27,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 845 places, 1118 transitions, 38250 flow, removed 272 selfloop flow, removed 3 redundant places. [2021-03-25 07:55:27,957 INFO L241 Difference]: Finished difference. Result has 850 places, 1101 transitions, 35380 flow [2021-03-25 07:55:27,958 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34818, PETRI_DIFFERENCE_MINUEND_PLACES=838, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1010, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=35380, PETRI_PLACES=850, PETRI_TRANSITIONS=1101} [2021-03-25 07:55:27,958 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 819 predicate places. [2021-03-25 07:55:27,958 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:27,958 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 850 places, 1101 transitions, 35380 flow [2021-03-25 07:55:27,958 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 850 places, 1101 transitions, 35380 flow [2021-03-25 07:55:27,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 850 places, 1101 transitions, 35380 flow [2021-03-25 07:55:28,462 INFO L129 PetriNetUnfolder]: 571/1351 cut-off events. [2021-03-25 07:55:28,462 INFO L130 PetriNetUnfolder]: For 158395/158451 co-relation queries the response was YES. [2021-03-25 07:55:28,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21173 conditions, 1351 events. 571/1351 cut-off events. For 158395/158451 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 10666 event pairs, 1 based on Foata normal form. 20/1369 useless extension candidates. Maximal degree in co-relation 20709. Up to 408 conditions per place. [2021-03-25 07:55:28,523 INFO L142 LiptonReduction]: Number of co-enabled transitions 1508 [2021-03-25 07:55:28,670 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:28,670 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:28,670 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 712 [2021-03-25 07:55:28,670 INFO L480 AbstractCegarLoop]: Abstraction has has 850 places, 1101 transitions, 35380 flow [2021-03-25 07:55:28,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:28,670 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:28,670 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:28,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-03-25 07:55:28,671 INFO L428 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:28,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:28,671 INFO L82 PathProgramCache]: Analyzing trace with hash 209615832, now seen corresponding path program 12 times [2021-03-25 07:55:28,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:28,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836930536] [2021-03-25 07:55:28,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:28,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:28,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:28,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:28,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:28,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:28,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:28,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:28,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:28,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:28,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:55:28,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:28,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:28,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:28,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:28,716 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:28,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:28,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836930536] [2021-03-25 07:55:28,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:28,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:55:28,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076897206] [2021-03-25 07:55:28,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:55:28,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:28,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:55:28,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:55:28,719 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:28,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 850 places, 1101 transitions, 35380 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:28,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:28,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:28,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:29,999 INFO L129 PetriNetUnfolder]: 729/1616 cut-off events. [2021-03-25 07:55:29,999 INFO L130 PetriNetUnfolder]: For 205844/205844 co-relation queries the response was YES. [2021-03-25 07:55:30,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26981 conditions, 1616 events. 729/1616 cut-off events. For 205844/205844 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 12347 event pairs, 2 based on Foata normal form. 1/1617 useless extension candidates. Maximal degree in co-relation 26362. Up to 1345 conditions per place. [2021-03-25 07:55:30,046 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 984 selfloop transitions, 113 changer transitions 6/1108 dead transitions. [2021-03-25 07:55:30,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 857 places, 1108 transitions, 37756 flow [2021-03-25 07:55:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:55:30,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:55:30,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:55:30,047 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2021-03-25 07:55:30,047 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:55:30,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:55:30,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:30,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:55:30,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:30,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:30,048 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:30,048 INFO L185 Difference]: Start difference. First operand has 850 places, 1101 transitions, 35380 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:55:30,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 857 places, 1108 transitions, 37756 flow [2021-03-25 07:55:32,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 847 places, 1108 transitions, 37268 flow, removed 162 selfloop flow, removed 10 redundant places. [2021-03-25 07:55:32,778 INFO L241 Difference]: Finished difference. Result has 849 places, 1096 transitions, 34995 flow [2021-03-25 07:55:32,778 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34892, PETRI_DIFFERENCE_MINUEND_PLACES=840, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=988, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=34995, PETRI_PLACES=849, PETRI_TRANSITIONS=1096} [2021-03-25 07:55:32,779 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 818 predicate places. [2021-03-25 07:55:32,779 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:32,779 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 849 places, 1096 transitions, 34995 flow [2021-03-25 07:55:32,779 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 849 places, 1096 transitions, 34995 flow [2021-03-25 07:55:32,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 849 places, 1096 transitions, 34995 flow [2021-03-25 07:55:33,347 INFO L129 PetriNetUnfolder]: 569/1339 cut-off events. [2021-03-25 07:55:33,347 INFO L130 PetriNetUnfolder]: For 148913/148973 co-relation queries the response was YES. [2021-03-25 07:55:33,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20966 conditions, 1339 events. 569/1339 cut-off events. For 148913/148973 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 10545 event pairs, 1 based on Foata normal form. 17/1355 useless extension candidates. Maximal degree in co-relation 20503. Up to 407 conditions per place. [2021-03-25 07:55:33,410 INFO L142 LiptonReduction]: Number of co-enabled transitions 1496 [2021-03-25 07:55:33,557 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:33,558 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:33,558 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 779 [2021-03-25 07:55:33,558 INFO L480 AbstractCegarLoop]: Abstraction has has 849 places, 1096 transitions, 34995 flow [2021-03-25 07:55:33,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:33,558 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:33,558 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:33,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-03-25 07:55:33,559 INFO L428 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:33,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:33,559 INFO L82 PathProgramCache]: Analyzing trace with hash 327722208, now seen corresponding path program 13 times [2021-03-25 07:55:33,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:33,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080770512] [2021-03-25 07:55:33,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:33,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:33,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:33,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:33,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:33,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:33,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:33,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:33,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:33,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:33,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:55:33,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:33,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:33,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:33,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:33,610 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:33,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:33,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:33,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080770512] [2021-03-25 07:55:33,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:33,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:55:33,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41948708] [2021-03-25 07:55:33,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:55:33,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:33,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:55:33,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:55:33,613 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:33,614 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 849 places, 1096 transitions, 34995 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:33,614 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:33,614 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:33,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:34,885 INFO L129 PetriNetUnfolder]: 727/1612 cut-off events. [2021-03-25 07:55:34,885 INFO L130 PetriNetUnfolder]: For 201888/201888 co-relation queries the response was YES. [2021-03-25 07:55:34,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26851 conditions, 1612 events. 727/1612 cut-off events. For 201888/201888 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 12301 event pairs, 1 based on Foata normal form. 1/1613 useless extension candidates. Maximal degree in co-relation 26232. Up to 1345 conditions per place. [2021-03-25 07:55:34,937 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 978 selfloop transitions, 119 changer transitions 2/1104 dead transitions. [2021-03-25 07:55:34,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 856 places, 1104 transitions, 37625 flow [2021-03-25 07:55:34,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:55:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:55:34,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:55:34,938 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46964285714285714 [2021-03-25 07:55:34,938 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:55:34,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:55:34,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:34,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:55:34,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:34,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:34,939 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:34,939 INFO L185 Difference]: Start difference. First operand has 849 places, 1096 transitions, 34995 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:55:34,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 856 places, 1104 transitions, 37625 flow [2021-03-25 07:55:37,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 840 places, 1104 transitions, 37250 flow, removed 14 selfloop flow, removed 16 redundant places. [2021-03-25 07:55:37,388 INFO L241 Difference]: Finished difference. Result has 843 places, 1097 transitions, 35119 flow [2021-03-25 07:55:37,388 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34630, PETRI_DIFFERENCE_MINUEND_PLACES=833, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1096, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=977, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=35119, PETRI_PLACES=843, PETRI_TRANSITIONS=1097} [2021-03-25 07:55:37,389 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 812 predicate places. [2021-03-25 07:55:37,389 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:37,389 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 843 places, 1097 transitions, 35119 flow [2021-03-25 07:55:37,389 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 843 places, 1097 transitions, 35119 flow [2021-03-25 07:55:37,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 843 places, 1097 transitions, 35119 flow [2021-03-25 07:55:37,863 INFO L129 PetriNetUnfolder]: 569/1344 cut-off events. [2021-03-25 07:55:37,863 INFO L130 PetriNetUnfolder]: For 146456/146516 co-relation queries the response was YES. [2021-03-25 07:55:37,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21013 conditions, 1344 events. 569/1344 cut-off events. For 146456/146516 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 10635 event pairs, 3 based on Foata normal form. 17/1359 useless extension candidates. Maximal degree in co-relation 20553. Up to 407 conditions per place. [2021-03-25 07:55:37,924 INFO L142 LiptonReduction]: Number of co-enabled transitions 1500 [2021-03-25 07:55:38,048 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:38,049 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:38,049 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 660 [2021-03-25 07:55:38,049 INFO L480 AbstractCegarLoop]: Abstraction has has 843 places, 1097 transitions, 35119 flow [2021-03-25 07:55:38,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:38,049 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:38,049 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:38,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-03-25 07:55:38,049 INFO L428 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:38,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:38,050 INFO L82 PathProgramCache]: Analyzing trace with hash -383760548, now seen corresponding path program 14 times [2021-03-25 07:55:38,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:38,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012370767] [2021-03-25 07:55:38,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:38,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:38,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:38,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:38,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:38,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:38,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:38,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:38,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:38,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:38,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:38,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:38,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:38,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:38,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:38,094 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:38,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:38,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:38,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012370767] [2021-03-25 07:55:38,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:38,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:55:38,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078535414] [2021-03-25 07:55:38,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:55:38,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:38,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:55:38,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:55:38,100 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:38,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 1097 transitions, 35119 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:38,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:38,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:38,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:39,324 INFO L129 PetriNetUnfolder]: 727/1619 cut-off events. [2021-03-25 07:55:39,324 INFO L130 PetriNetUnfolder]: For 207991/207991 co-relation queries the response was YES. [2021-03-25 07:55:39,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27101 conditions, 1619 events. 727/1619 cut-off events. For 207991/207991 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 12402 event pairs, 1 based on Foata normal form. 1/1620 useless extension candidates. Maximal degree in co-relation 26485. Up to 1348 conditions per place. [2021-03-25 07:55:39,373 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 998 selfloop transitions, 96 changer transitions 10/1109 dead transitions. [2021-03-25 07:55:39,373 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 850 places, 1109 transitions, 38192 flow [2021-03-25 07:55:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:55:39,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:55:39,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:55:39,374 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2021-03-25 07:55:39,375 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:55:39,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:55:39,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:39,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:55:39,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:39,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:39,376 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:39,376 INFO L185 Difference]: Start difference. First operand has 843 places, 1097 transitions, 35119 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:55:39,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 850 places, 1109 transitions, 38192 flow [2021-03-25 07:55:41,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 843 places, 1109 transitions, 37694 flow, removed 122 selfloop flow, removed 7 redundant places. [2021-03-25 07:55:41,816 INFO L241 Difference]: Finished difference. Result has 849 places, 1093 transitions, 34990 flow [2021-03-25 07:55:41,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34740, PETRI_DIFFERENCE_MINUEND_PLACES=836, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1097, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1001, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=34990, PETRI_PLACES=849, PETRI_TRANSITIONS=1093} [2021-03-25 07:55:41,816 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 818 predicate places. [2021-03-25 07:55:41,816 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:41,817 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 849 places, 1093 transitions, 34990 flow [2021-03-25 07:55:41,817 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 849 places, 1093 transitions, 34990 flow [2021-03-25 07:55:41,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 849 places, 1093 transitions, 34990 flow [2021-03-25 07:55:42,296 INFO L129 PetriNetUnfolder]: 567/1338 cut-off events. [2021-03-25 07:55:42,296 INFO L130 PetriNetUnfolder]: For 151703/151785 co-relation queries the response was YES. [2021-03-25 07:55:42,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20983 conditions, 1338 events. 567/1338 cut-off events. For 151703/151785 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 10588 event pairs, 2 based on Foata normal form. 21/1357 useless extension candidates. Maximal degree in co-relation 20519. Up to 405 conditions per place. [2021-03-25 07:55:42,355 INFO L142 LiptonReduction]: Number of co-enabled transitions 1490 [2021-03-25 07:55:42,497 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:42,497 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:42,497 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 681 [2021-03-25 07:55:42,498 INFO L480 AbstractCegarLoop]: Abstraction has has 849 places, 1093 transitions, 34990 flow [2021-03-25 07:55:42,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:42,498 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:42,498 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:42,498 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-03-25 07:55:42,498 INFO L428 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:42,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:42,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1198489658, now seen corresponding path program 15 times [2021-03-25 07:55:42,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:42,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923733508] [2021-03-25 07:55:42,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:42,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:42,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:42,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:42,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:42,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:42,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:42,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:42,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:42,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:42,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:55:42,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:42,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:42,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:42,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:42,540 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:42,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:42,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923733508] [2021-03-25 07:55:42,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:42,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:55:42,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77710729] [2021-03-25 07:55:42,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:55:42,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:42,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:55:42,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:55:42,543 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:42,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 849 places, 1093 transitions, 34990 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:42,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:42,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:42,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:43,752 INFO L129 PetriNetUnfolder]: 726/1612 cut-off events. [2021-03-25 07:55:43,752 INFO L130 PetriNetUnfolder]: For 205920/205920 co-relation queries the response was YES. [2021-03-25 07:55:43,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26953 conditions, 1612 events. 726/1612 cut-off events. For 205920/205920 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 12293 event pairs, 2 based on Foata normal form. 1/1613 useless extension candidates. Maximal degree in co-relation 26333. Up to 1335 conditions per place. [2021-03-25 07:55:43,799 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1003 selfloop transitions, 90 changer transitions 8/1106 dead transitions. [2021-03-25 07:55:43,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 856 places, 1106 transitions, 37817 flow [2021-03-25 07:55:43,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:55:43,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:55:43,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 07:55:43,800 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4732142857142857 [2021-03-25 07:55:43,800 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 07:55:43,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 07:55:43,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:43,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 07:55:43,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:43,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:43,801 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:43,801 INFO L185 Difference]: Start difference. First operand has 849 places, 1093 transitions, 34990 flow. Second operand 8 states and 265 transitions. [2021-03-25 07:55:43,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 856 places, 1106 transitions, 37817 flow [2021-03-25 07:55:46,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 839 places, 1106 transitions, 37415 flow, removed 18 selfloop flow, removed 17 redundant places. [2021-03-25 07:55:46,174 INFO L241 Difference]: Finished difference. Result has 844 places, 1091 transitions, 34932 flow [2021-03-25 07:55:46,175 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34608, PETRI_DIFFERENCE_MINUEND_PLACES=832, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1093, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1003, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=34932, PETRI_PLACES=844, PETRI_TRANSITIONS=1091} [2021-03-25 07:55:46,175 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 813 predicate places. [2021-03-25 07:55:46,175 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:46,175 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 844 places, 1091 transitions, 34932 flow [2021-03-25 07:55:46,175 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 844 places, 1091 transitions, 34932 flow [2021-03-25 07:55:46,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 844 places, 1091 transitions, 34932 flow [2021-03-25 07:55:46,664 INFO L129 PetriNetUnfolder]: 566/1329 cut-off events. [2021-03-25 07:55:46,664 INFO L130 PetriNetUnfolder]: For 147312/147361 co-relation queries the response was YES. [2021-03-25 07:55:46,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20918 conditions, 1329 events. 566/1329 cut-off events. For 147312/147361 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 10486 event pairs, 2 based on Foata normal form. 18/1346 useless extension candidates. Maximal degree in co-relation 20457. Up to 404 conditions per place. [2021-03-25 07:55:46,727 INFO L142 LiptonReduction]: Number of co-enabled transitions 1486 [2021-03-25 07:55:46,871 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:46,871 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:46,871 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 696 [2021-03-25 07:55:46,872 INFO L480 AbstractCegarLoop]: Abstraction has has 844 places, 1091 transitions, 34932 flow [2021-03-25 07:55:46,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:46,872 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:46,872 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:46,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-03-25 07:55:46,872 INFO L428 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:46,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:46,872 INFO L82 PathProgramCache]: Analyzing trace with hash -530557676, now seen corresponding path program 16 times [2021-03-25 07:55:46,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:46,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591618688] [2021-03-25 07:55:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:46,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:46,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:46,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:46,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:46,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:46,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:46,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:46,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:46,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:46,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:55:46,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:46,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:46,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:46,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:46,930 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:46,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:46,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:46,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591618688] [2021-03-25 07:55:46,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:46,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:55:46,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103432019] [2021-03-25 07:55:46,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:55:46,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:46,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:55:46,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:55:46,933 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:46,934 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 844 places, 1091 transitions, 34932 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:46,934 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:46,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:46,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:48,251 INFO L129 PetriNetUnfolder]: 724/1607 cut-off events. [2021-03-25 07:55:48,251 INFO L130 PetriNetUnfolder]: For 202664/202664 co-relation queries the response was YES. [2021-03-25 07:55:48,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26890 conditions, 1607 events. 724/1607 cut-off events. For 202664/202664 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 12254 event pairs, 1 based on Foata normal form. 1/1608 useless extension candidates. Maximal degree in co-relation 26273. Up to 1366 conditions per place. [2021-03-25 07:55:48,299 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1032 selfloop transitions, 57 changer transitions 8/1102 dead transitions. [2021-03-25 07:55:48,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 851 places, 1102 transitions, 37723 flow [2021-03-25 07:55:48,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:55:48,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:55:48,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:55:48,300 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2021-03-25 07:55:48,301 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:55:48,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:55:48,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:48,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:55:48,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:48,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:48,304 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:48,304 INFO L185 Difference]: Start difference. First operand has 844 places, 1091 transitions, 34932 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:55:48,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 851 places, 1102 transitions, 37723 flow [2021-03-25 07:55:50,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 836 places, 1102 transitions, 37359 flow, removed 57 selfloop flow, removed 15 redundant places. [2021-03-25 07:55:50,704 INFO L241 Difference]: Finished difference. Result has 841 places, 1088 transitions, 34699 flow [2021-03-25 07:55:50,704 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34574, PETRI_DIFFERENCE_MINUEND_PLACES=829, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1091, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1034, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=34699, PETRI_PLACES=841, PETRI_TRANSITIONS=1088} [2021-03-25 07:55:50,704 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 810 predicate places. [2021-03-25 07:55:50,704 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:50,705 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 841 places, 1088 transitions, 34699 flow [2021-03-25 07:55:50,705 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 841 places, 1088 transitions, 34699 flow [2021-03-25 07:55:50,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 841 places, 1088 transitions, 34699 flow [2021-03-25 07:55:51,187 INFO L129 PetriNetUnfolder]: 565/1337 cut-off events. [2021-03-25 07:55:51,187 INFO L130 PetriNetUnfolder]: For 148857/148923 co-relation queries the response was YES. [2021-03-25 07:55:51,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20788 conditions, 1337 events. 565/1337 cut-off events. For 148857/148923 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 10625 event pairs, 2 based on Foata normal form. 21/1356 useless extension candidates. Maximal degree in co-relation 20329. Up to 404 conditions per place. [2021-03-25 07:55:51,248 INFO L142 LiptonReduction]: Number of co-enabled transitions 1478 [2021-03-25 07:55:51,391 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:51,391 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:51,391 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 687 [2021-03-25 07:55:51,391 INFO L480 AbstractCegarLoop]: Abstraction has has 841 places, 1088 transitions, 34699 flow [2021-03-25 07:55:51,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:51,391 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:51,391 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:51,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-03-25 07:55:51,392 INFO L428 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:51,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:51,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1389425361, now seen corresponding path program 2 times [2021-03-25 07:55:51,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:51,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061665202] [2021-03-25 07:55:51,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:51,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:51,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:51,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:51,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:51,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:51,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:51,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:51,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:51,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:51,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:51,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:51,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:51,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:51,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:51,434 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:51,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:51,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:51,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061665202] [2021-03-25 07:55:51,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:51,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:55:51,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197723243] [2021-03-25 07:55:51,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:55:51,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:51,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:55:51,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:55:51,437 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:51,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 841 places, 1088 transitions, 34699 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:51,437 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:51,437 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:51,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:52,635 INFO L129 PetriNetUnfolder]: 720/1596 cut-off events. [2021-03-25 07:55:52,635 INFO L130 PetriNetUnfolder]: For 198504/198504 co-relation queries the response was YES. [2021-03-25 07:55:52,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26423 conditions, 1596 events. 720/1596 cut-off events. For 198504/198504 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 12107 event pairs, 2 based on Foata normal form. 1/1597 useless extension candidates. Maximal degree in co-relation 25809. Up to 1329 conditions per place. [2021-03-25 07:55:52,684 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 996 selfloop transitions, 92 changer transitions 4/1097 dead transitions. [2021-03-25 07:55:52,684 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 848 places, 1097 transitions, 37103 flow [2021-03-25 07:55:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:55:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:55:52,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 07:55:52,685 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2021-03-25 07:55:52,685 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 07:55:52,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 07:55:52,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:52,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 07:55:52,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:52,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:52,686 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:52,686 INFO L185 Difference]: Start difference. First operand has 841 places, 1088 transitions, 34699 flow. Second operand 8 states and 264 transitions. [2021-03-25 07:55:52,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 848 places, 1097 transitions, 37103 flow [2021-03-25 07:55:55,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 830 places, 1097 transitions, 36697 flow, removed 80 selfloop flow, removed 18 redundant places. [2021-03-25 07:55:55,140 INFO L241 Difference]: Finished difference. Result has 833 places, 1086 transitions, 34519 flow [2021-03-25 07:55:55,141 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34303, PETRI_DIFFERENCE_MINUEND_PLACES=823, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1088, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=996, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=34519, PETRI_PLACES=833, PETRI_TRANSITIONS=1086} [2021-03-25 07:55:55,141 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 802 predicate places. [2021-03-25 07:55:55,141 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:55,141 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 833 places, 1086 transitions, 34519 flow [2021-03-25 07:55:55,141 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 833 places, 1086 transitions, 34519 flow [2021-03-25 07:55:55,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 833 places, 1086 transitions, 34519 flow [2021-03-25 07:55:55,645 INFO L129 PetriNetUnfolder]: 564/1328 cut-off events. [2021-03-25 07:55:55,646 INFO L130 PetriNetUnfolder]: For 140492/140558 co-relation queries the response was YES. [2021-03-25 07:55:55,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20618 conditions, 1328 events. 564/1328 cut-off events. For 140492/140558 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 10490 event pairs, 7 based on Foata normal form. 21/1346 useless extension candidates. Maximal degree in co-relation 20165. Up to 404 conditions per place. [2021-03-25 07:55:55,707 INFO L142 LiptonReduction]: Number of co-enabled transitions 1472 [2021-03-25 07:55:55,849 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:55:55,850 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:55:55,850 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 709 [2021-03-25 07:55:55,850 INFO L480 AbstractCegarLoop]: Abstraction has has 833 places, 1086 transitions, 34519 flow [2021-03-25 07:55:55,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:55,850 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:55:55,850 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:55:55,850 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-03-25 07:55:55,850 INFO L428 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:55:55,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:55:55,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1738093623, now seen corresponding path program 3 times [2021-03-25 07:55:55,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:55:55,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446294316] [2021-03-25 07:55:55,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:55:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:55:55,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:55,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:55,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:55,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:55,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:55,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:55,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:55,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:55,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:55,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:55:55,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:55,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:55:55,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:55:55,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:55:55,894 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:55:55,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:55:55,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:55:55,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446294316] [2021-03-25 07:55:55,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:55:55,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:55:55,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320192179] [2021-03-25 07:55:55,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:55:55,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:55:55,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:55:55,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:55:55,898 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:55:55,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 833 places, 1086 transitions, 34519 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:55,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:55:55,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:55:55,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:55:57,096 INFO L129 PetriNetUnfolder]: 718/1593 cut-off events. [2021-03-25 07:55:57,097 INFO L130 PetriNetUnfolder]: For 192428/192428 co-relation queries the response was YES. [2021-03-25 07:55:57,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26213 conditions, 1593 events. 718/1593 cut-off events. For 192428/192428 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 12110 event pairs, 1 based on Foata normal form. 1/1594 useless extension candidates. Maximal degree in co-relation 25606. Up to 1355 conditions per place. [2021-03-25 07:55:57,150 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 1015 selfloop transitions, 69 changer transitions 3/1092 dead transitions. [2021-03-25 07:55:57,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 840 places, 1092 transitions, 36857 flow [2021-03-25 07:55:57,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:55:57,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:55:57,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:55:57,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46785714285714286 [2021-03-25 07:55:57,151 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:55:57,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:55:57,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:55:57,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:55:57,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:57,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:57,152 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:55:57,152 INFO L185 Difference]: Start difference. First operand has 833 places, 1086 transitions, 34519 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:55:57,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 840 places, 1092 transitions, 36857 flow [2021-03-25 07:55:59,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 829 places, 1092 transitions, 36586 flow, removed 3 selfloop flow, removed 11 redundant places. [2021-03-25 07:55:59,470 INFO L241 Difference]: Finished difference. Result has 831 places, 1084 transitions, 34367 flow [2021-03-25 07:55:59,470 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34248, PETRI_DIFFERENCE_MINUEND_PLACES=822, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1086, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1017, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=34367, PETRI_PLACES=831, PETRI_TRANSITIONS=1084} [2021-03-25 07:55:59,470 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 800 predicate places. [2021-03-25 07:55:59,470 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:55:59,470 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 831 places, 1084 transitions, 34367 flow [2021-03-25 07:55:59,470 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 831 places, 1084 transitions, 34367 flow [2021-03-25 07:55:59,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 831 places, 1084 transitions, 34367 flow [2021-03-25 07:55:59,951 INFO L129 PetriNetUnfolder]: 563/1321 cut-off events. [2021-03-25 07:55:59,951 INFO L130 PetriNetUnfolder]: For 142430/142496 co-relation queries the response was YES. [2021-03-25 07:55:59,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20528 conditions, 1321 events. 563/1321 cut-off events. For 142430/142496 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 10415 event pairs, 2 based on Foata normal form. 21/1340 useless extension candidates. Maximal degree in co-relation 20076. Up to 403 conditions per place. [2021-03-25 07:56:00,009 INFO L142 LiptonReduction]: Number of co-enabled transitions 1468 [2021-03-25 07:56:00,139 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:00,139 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:00,139 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 669 [2021-03-25 07:56:00,139 INFO L480 AbstractCegarLoop]: Abstraction has has 831 places, 1084 transitions, 34367 flow [2021-03-25 07:56:00,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:00,139 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:00,139 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:00,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-03-25 07:56:00,139 INFO L428 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:00,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:00,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1911635004, now seen corresponding path program 1 times [2021-03-25 07:56:00,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:00,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983986724] [2021-03-25 07:56:00,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:00,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:00,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:00,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:00,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:00,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:00,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:00,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:00,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:00,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:00,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:00,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:00,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:00,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:00,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:00,183 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:00,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:00,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983986724] [2021-03-25 07:56:00,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:00,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:56:00,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126868852] [2021-03-25 07:56:00,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:56:00,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:00,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:56:00,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:56:00,186 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:56:00,187 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 1084 transitions, 34367 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:00,187 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:00,187 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:56:00,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:01,366 INFO L129 PetriNetUnfolder]: 710/1582 cut-off events. [2021-03-25 07:56:01,366 INFO L130 PetriNetUnfolder]: For 183929/183932 co-relation queries the response was YES. [2021-03-25 07:56:01,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25785 conditions, 1582 events. 710/1582 cut-off events. For 183929/183932 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 12131 event pairs, 2 based on Foata normal form. 4/1586 useless extension candidates. Maximal degree in co-relation 25178. Up to 1297 conditions per place. [2021-03-25 07:56:01,414 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 986 selfloop transitions, 78 changer transitions 26/1095 dead transitions. [2021-03-25 07:56:01,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 838 places, 1095 transitions, 37263 flow [2021-03-25 07:56:01,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:56:01,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:56:01,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:56:01,415 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46785714285714286 [2021-03-25 07:56:01,415 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:56:01,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:56:01,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:01,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:56:01,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:01,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:01,416 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:01,416 INFO L185 Difference]: Start difference. First operand has 831 places, 1084 transitions, 34367 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:56:01,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 838 places, 1095 transitions, 37263 flow [2021-03-25 07:56:04,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 833 places, 1095 transitions, 37140 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-25 07:56:04,020 INFO L241 Difference]: Finished difference. Result has 839 places, 1064 transitions, 33671 flow [2021-03-25 07:56:04,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=34244, PETRI_DIFFERENCE_MINUEND_PLACES=826, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1084, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1006, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=33671, PETRI_PLACES=839, PETRI_TRANSITIONS=1064} [2021-03-25 07:56:04,021 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 808 predicate places. [2021-03-25 07:56:04,021 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:04,021 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 839 places, 1064 transitions, 33671 flow [2021-03-25 07:56:04,021 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 839 places, 1064 transitions, 33671 flow [2021-03-25 07:56:04,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 839 places, 1064 transitions, 33671 flow [2021-03-25 07:56:04,493 INFO L129 PetriNetUnfolder]: 554/1287 cut-off events. [2021-03-25 07:56:04,493 INFO L130 PetriNetUnfolder]: For 149197/149245 co-relation queries the response was YES. [2021-03-25 07:56:04,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20184 conditions, 1287 events. 554/1287 cut-off events. For 149197/149245 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 9994 event pairs, 0 based on Foata normal form. 16/1301 useless extension candidates. Maximal degree in co-relation 19727. Up to 391 conditions per place. [2021-03-25 07:56:04,552 INFO L142 LiptonReduction]: Number of co-enabled transitions 1462 [2021-03-25 07:56:04,692 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:04,692 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:04,692 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 671 [2021-03-25 07:56:04,692 INFO L480 AbstractCegarLoop]: Abstraction has has 839 places, 1064 transitions, 33671 flow [2021-03-25 07:56:04,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:04,692 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:04,693 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:04,693 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-03-25 07:56:04,693 INFO L428 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:04,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:04,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1364243575, now seen corresponding path program 4 times [2021-03-25 07:56:04,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:04,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052423623] [2021-03-25 07:56:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:04,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:04,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:04,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:04,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:04,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:04,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:04,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:04,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:04,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:04,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:56:04,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:04,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:04,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:04,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:04,738 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:04,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:04,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:04,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052423623] [2021-03-25 07:56:04,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:04,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:56:04,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371418264] [2021-03-25 07:56:04,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:56:04,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:04,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:56:04,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:56:04,742 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:56:04,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 839 places, 1064 transitions, 33671 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:04,742 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:04,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:56:04,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:05,987 INFO L129 PetriNetUnfolder]: 707/1566 cut-off events. [2021-03-25 07:56:05,987 INFO L130 PetriNetUnfolder]: For 194710/194710 co-relation queries the response was YES. [2021-03-25 07:56:06,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25771 conditions, 1566 events. 707/1566 cut-off events. For 194710/194710 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 11836 event pairs, 1 based on Foata normal form. 1/1567 useless extension candidates. Maximal degree in co-relation 25160. Up to 1312 conditions per place. [2021-03-25 07:56:06,036 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 963 selfloop transitions, 95 changer transitions 7/1070 dead transitions. [2021-03-25 07:56:06,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 846 places, 1070 transitions, 35969 flow [2021-03-25 07:56:06,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:56:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:56:06,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:56:06,037 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46785714285714286 [2021-03-25 07:56:06,037 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:56:06,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:56:06,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:06,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:56:06,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:06,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:06,038 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:06,038 INFO L185 Difference]: Start difference. First operand has 839 places, 1064 transitions, 33671 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:56:06,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 846 places, 1070 transitions, 35969 flow [2021-03-25 07:56:08,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 819 places, 1070 transitions, 35497 flow, removed 23 selfloop flow, removed 27 redundant places. [2021-03-25 07:56:08,419 INFO L241 Difference]: Finished difference. Result has 821 places, 1058 transitions, 33265 flow [2021-03-25 07:56:08,420 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=33199, PETRI_DIFFERENCE_MINUEND_PLACES=812, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1064, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=969, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=33265, PETRI_PLACES=821, PETRI_TRANSITIONS=1058} [2021-03-25 07:56:08,420 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 790 predicate places. [2021-03-25 07:56:08,420 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:08,420 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 821 places, 1058 transitions, 33265 flow [2021-03-25 07:56:08,420 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 821 places, 1058 transitions, 33265 flow [2021-03-25 07:56:08,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 821 places, 1058 transitions, 33265 flow [2021-03-25 07:56:08,897 INFO L129 PetriNetUnfolder]: 552/1300 cut-off events. [2021-03-25 07:56:08,897 INFO L130 PetriNetUnfolder]: For 136695/136739 co-relation queries the response was YES. [2021-03-25 07:56:08,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19948 conditions, 1300 events. 552/1300 cut-off events. For 136695/136739 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 10133 event pairs, 2 based on Foata normal form. 18/1317 useless extension candidates. Maximal degree in co-relation 19501. Up to 391 conditions per place. [2021-03-25 07:56:08,954 INFO L142 LiptonReduction]: Number of co-enabled transitions 1444 [2021-03-25 07:56:09,090 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:09,090 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:09,091 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 671 [2021-03-25 07:56:09,091 INFO L480 AbstractCegarLoop]: Abstraction has has 821 places, 1058 transitions, 33265 flow [2021-03-25 07:56:09,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:09,091 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:09,091 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:09,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-03-25 07:56:09,091 INFO L428 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:09,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:09,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1910270483, now seen corresponding path program 5 times [2021-03-25 07:56:09,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:09,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355617745] [2021-03-25 07:56:09,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:09,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:09,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:09,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:09,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:09,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:09,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:09,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:09,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:09,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:09,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:56:09,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:09,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:09,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:09,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:09,145 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:09,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:09,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:09,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355617745] [2021-03-25 07:56:09,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:09,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:56:09,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930191087] [2021-03-25 07:56:09,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:56:09,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:09,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:56:09,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:56:09,149 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:56:09,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 821 places, 1058 transitions, 33265 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:09,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:09,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:56:09,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:10,254 INFO L129 PetriNetUnfolder]: 704/1557 cut-off events. [2021-03-25 07:56:10,254 INFO L130 PetriNetUnfolder]: For 183263/183263 co-relation queries the response was YES. [2021-03-25 07:56:10,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25395 conditions, 1557 events. 704/1557 cut-off events. For 183263/183263 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 11722 event pairs, 1 based on Foata normal form. 1/1558 useless extension candidates. Maximal degree in co-relation 24795. Up to 1309 conditions per place. [2021-03-25 07:56:10,300 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 956 selfloop transitions, 96 changer transitions 6/1063 dead transitions. [2021-03-25 07:56:10,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 828 places, 1063 transitions, 35547 flow [2021-03-25 07:56:10,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:56:10,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:56:10,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 261 transitions. [2021-03-25 07:56:10,301 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4660714285714286 [2021-03-25 07:56:10,301 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 261 transitions. [2021-03-25 07:56:10,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 261 transitions. [2021-03-25 07:56:10,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:10,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 261 transitions. [2021-03-25 07:56:10,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:10,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:10,302 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:10,302 INFO L185 Difference]: Start difference. First operand has 821 places, 1058 transitions, 33265 flow. Second operand 8 states and 261 transitions. [2021-03-25 07:56:10,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 828 places, 1063 transitions, 35547 flow [2021-03-25 07:56:12,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 811 places, 1063 transitions, 35187 flow, removed 6 selfloop flow, removed 17 redundant places. [2021-03-25 07:56:12,468 INFO L241 Difference]: Finished difference. Result has 813 places, 1053 transitions, 32963 flow [2021-03-25 07:56:12,469 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=32907, PETRI_DIFFERENCE_MINUEND_PLACES=804, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1058, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=962, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=32963, PETRI_PLACES=813, PETRI_TRANSITIONS=1053} [2021-03-25 07:56:12,469 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 782 predicate places. [2021-03-25 07:56:12,469 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:12,469 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 813 places, 1053 transitions, 32963 flow [2021-03-25 07:56:12,469 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 813 places, 1053 transitions, 32963 flow [2021-03-25 07:56:12,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 813 places, 1053 transitions, 32963 flow [2021-03-25 07:56:12,938 INFO L129 PetriNetUnfolder]: 551/1300 cut-off events. [2021-03-25 07:56:12,938 INFO L130 PetriNetUnfolder]: For 131053/131083 co-relation queries the response was YES. [2021-03-25 07:56:12,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19791 conditions, 1300 events. 551/1300 cut-off events. For 131053/131083 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 10230 event pairs, 3 based on Foata normal form. 15/1313 useless extension candidates. Maximal degree in co-relation 19346. Up to 390 conditions per place. [2021-03-25 07:56:13,000 INFO L142 LiptonReduction]: Number of co-enabled transitions 1434 [2021-03-25 07:56:13,132 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:13,132 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:13,133 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 664 [2021-03-25 07:56:13,133 INFO L480 AbstractCegarLoop]: Abstraction has has 813 places, 1053 transitions, 32963 flow [2021-03-25 07:56:13,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:13,133 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:13,133 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:13,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-03-25 07:56:13,133 INFO L428 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:13,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:13,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1177779144, now seen corresponding path program 2 times [2021-03-25 07:56:13,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:13,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169454874] [2021-03-25 07:56:13,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:13,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:13,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:13,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:13,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:13,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:13,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:13,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:13,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:13,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:13,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:56:13,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:13,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:13,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:13,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:13,179 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:13,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:13,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:13,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169454874] [2021-03-25 07:56:13,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:13,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:56:13,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588236803] [2021-03-25 07:56:13,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:56:13,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:13,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:56:13,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:56:13,182 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:56:13,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 813 places, 1053 transitions, 32963 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:13,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:13,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:56:13,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:14,368 INFO L129 PetriNetUnfolder]: 699/1546 cut-off events. [2021-03-25 07:56:14,368 INFO L130 PetriNetUnfolder]: For 195433/195441 co-relation queries the response was YES. [2021-03-25 07:56:14,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25185 conditions, 1546 events. 699/1546 cut-off events. For 195433/195441 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 11717 event pairs, 74 based on Foata normal form. 9/1555 useless extension candidates. Maximal degree in co-relation 24586. Up to 1271 conditions per place. [2021-03-25 07:56:14,417 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 934 selfloop transitions, 115 changer transitions 16/1070 dead transitions. [2021-03-25 07:56:14,417 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 820 places, 1070 transitions, 36431 flow [2021-03-25 07:56:14,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:56:14,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:56:14,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 260 transitions. [2021-03-25 07:56:14,418 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2021-03-25 07:56:14,418 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 260 transitions. [2021-03-25 07:56:14,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 260 transitions. [2021-03-25 07:56:14,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:14,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 260 transitions. [2021-03-25 07:56:14,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:14,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:14,419 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:14,419 INFO L185 Difference]: Start difference. First operand has 813 places, 1053 transitions, 32963 flow. Second operand 8 states and 260 transitions. [2021-03-25 07:56:14,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 820 places, 1070 transitions, 36431 flow [2021-03-25 07:56:16,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 801 places, 1070 transitions, 36036 flow, removed 26 selfloop flow, removed 19 redundant places. [2021-03-25 07:56:16,564 INFO L241 Difference]: Finished difference. Result has 806 places, 1050 transitions, 33191 flow [2021-03-25 07:56:16,564 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=32596, PETRI_DIFFERENCE_MINUEND_PLACES=794, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=33191, PETRI_PLACES=806, PETRI_TRANSITIONS=1050} [2021-03-25 07:56:16,564 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 775 predicate places. [2021-03-25 07:56:16,564 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:16,564 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 806 places, 1050 transitions, 33191 flow [2021-03-25 07:56:16,565 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 806 places, 1050 transitions, 33191 flow [2021-03-25 07:56:16,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 806 places, 1050 transitions, 33191 flow [2021-03-25 07:56:17,023 INFO L129 PetriNetUnfolder]: 549/1293 cut-off events. [2021-03-25 07:56:17,024 INFO L130 PetriNetUnfolder]: For 140283/140326 co-relation queries the response was YES. [2021-03-25 07:56:17,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19812 conditions, 1293 events. 549/1293 cut-off events. For 140283/140326 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 10136 event pairs, 1 based on Foata normal form. 17/1308 useless extension candidates. Maximal degree in co-relation 19372. Up to 393 conditions per place. [2021-03-25 07:56:17,095 INFO L142 LiptonReduction]: Number of co-enabled transitions 1442 [2021-03-25 07:56:17,222 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:17,223 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:17,223 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 659 [2021-03-25 07:56:17,223 INFO L480 AbstractCegarLoop]: Abstraction has has 806 places, 1050 transitions, 33191 flow [2021-03-25 07:56:17,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:17,223 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:17,223 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:17,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-03-25 07:56:17,223 INFO L428 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:17,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:17,224 INFO L82 PathProgramCache]: Analyzing trace with hash -426786176, now seen corresponding path program 3 times [2021-03-25 07:56:17,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:17,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597678321] [2021-03-25 07:56:17,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:17,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:17,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:17,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:17,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:17,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:17,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:17,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:17,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:17,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:17,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:56:17,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:17,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:17,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:17,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:17,280 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:17,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:17,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597678321] [2021-03-25 07:56:17,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:17,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:56:17,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931095859] [2021-03-25 07:56:17,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:56:17,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:17,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:56:17,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:56:17,283 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:56:17,284 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 806 places, 1050 transitions, 33191 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:17,284 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:17,284 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:56:17,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:18,389 INFO L129 PetriNetUnfolder]: 696/1542 cut-off events. [2021-03-25 07:56:18,389 INFO L130 PetriNetUnfolder]: For 193266/193274 co-relation queries the response was YES. [2021-03-25 07:56:18,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25118 conditions, 1542 events. 696/1542 cut-off events. For 193266/193274 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 11660 event pairs, 116 based on Foata normal form. 9/1551 useless extension candidates. Maximal degree in co-relation 24525. Up to 1297 conditions per place. [2021-03-25 07:56:18,433 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 984 selfloop transitions, 64 changer transitions 10/1063 dead transitions. [2021-03-25 07:56:18,433 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 813 places, 1063 transitions, 36517 flow [2021-03-25 07:56:18,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:56:18,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:56:18,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 260 transitions. [2021-03-25 07:56:18,434 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2021-03-25 07:56:18,434 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 260 transitions. [2021-03-25 07:56:18,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 260 transitions. [2021-03-25 07:56:18,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:18,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 260 transitions. [2021-03-25 07:56:18,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:18,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:18,435 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:18,435 INFO L185 Difference]: Start difference. First operand has 806 places, 1050 transitions, 33191 flow. Second operand 8 states and 260 transitions. [2021-03-25 07:56:18,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 813 places, 1063 transitions, 36517 flow [2021-03-25 07:56:20,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 810 places, 1063 transitions, 36144 flow, removed 163 selfloop flow, removed 3 redundant places. [2021-03-25 07:56:20,718 INFO L241 Difference]: Finished difference. Result has 814 places, 1049 transitions, 33484 flow [2021-03-25 07:56:20,718 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=32818, PETRI_DIFFERENCE_MINUEND_PLACES=803, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1050, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=988, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=33484, PETRI_PLACES=814, PETRI_TRANSITIONS=1049} [2021-03-25 07:56:20,718 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 783 predicate places. [2021-03-25 07:56:20,718 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:20,718 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 814 places, 1049 transitions, 33484 flow [2021-03-25 07:56:20,718 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 814 places, 1049 transitions, 33484 flow [2021-03-25 07:56:20,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 814 places, 1049 transitions, 33484 flow [2021-03-25 07:56:21,154 INFO L129 PetriNetUnfolder]: 549/1292 cut-off events. [2021-03-25 07:56:21,154 INFO L130 PetriNetUnfolder]: For 138576/138603 co-relation queries the response was YES. [2021-03-25 07:56:21,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20008 conditions, 1292 events. 549/1292 cut-off events. For 138576/138603 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 10099 event pairs, 6 based on Foata normal form. 13/1303 useless extension candidates. Maximal degree in co-relation 19562. Up to 394 conditions per place. [2021-03-25 07:56:21,207 INFO L142 LiptonReduction]: Number of co-enabled transitions 1440 [2021-03-25 07:56:21,332 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:21,332 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:21,333 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 615 [2021-03-25 07:56:21,333 INFO L480 AbstractCegarLoop]: Abstraction has has 814 places, 1049 transitions, 33484 flow [2021-03-25 07:56:21,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:21,333 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:21,333 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:21,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-03-25 07:56:21,333 INFO L428 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:21,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:21,333 INFO L82 PathProgramCache]: Analyzing trace with hash -101912416, now seen corresponding path program 4 times [2021-03-25 07:56:21,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:21,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052470159] [2021-03-25 07:56:21,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:21,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:21,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:21,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:21,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:21,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:21,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:21,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:21,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:21,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:21,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:56:21,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:21,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:21,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:21,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:21,377 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:21,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:21,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:21,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052470159] [2021-03-25 07:56:21,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:21,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:56:21,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684965334] [2021-03-25 07:56:21,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:56:21,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:21,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:56:21,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:56:21,380 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:56:21,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 814 places, 1049 transitions, 33484 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:21,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:21,380 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:56:21,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:22,495 INFO L129 PetriNetUnfolder]: 693/1536 cut-off events. [2021-03-25 07:56:22,495 INFO L130 PetriNetUnfolder]: For 190414/190417 co-relation queries the response was YES. [2021-03-25 07:56:22,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25097 conditions, 1536 events. 693/1536 cut-off events. For 190414/190417 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 11617 event pairs, 2 based on Foata normal form. 4/1540 useless extension candidates. Maximal degree in co-relation 24496. Up to 1260 conditions per place. [2021-03-25 07:56:22,531 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 918 selfloop transitions, 116 changer transitions 19/1058 dead transitions. [2021-03-25 07:56:22,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 821 places, 1058 transitions, 36438 flow [2021-03-25 07:56:22,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:56:22,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:56:22,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2021-03-25 07:56:22,532 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4625 [2021-03-25 07:56:22,533 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 259 transitions. [2021-03-25 07:56:22,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 259 transitions. [2021-03-25 07:56:22,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:22,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 259 transitions. [2021-03-25 07:56:22,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:22,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:22,533 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:22,533 INFO L185 Difference]: Start difference. First operand has 814 places, 1049 transitions, 33484 flow. Second operand 8 states and 259 transitions. [2021-03-25 07:56:22,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 821 places, 1058 transitions, 36438 flow [2021-03-25 07:56:24,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 809 places, 1058 transitions, 35676 flow, removed 301 selfloop flow, removed 12 redundant places. [2021-03-25 07:56:24,698 INFO L241 Difference]: Finished difference. Result has 814 places, 1036 transitions, 32398 flow [2021-03-25 07:56:24,699 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=32742, PETRI_DIFFERENCE_MINUEND_PLACES=802, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=32398, PETRI_PLACES=814, PETRI_TRANSITIONS=1036} [2021-03-25 07:56:24,699 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 783 predicate places. [2021-03-25 07:56:24,699 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:24,699 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 814 places, 1036 transitions, 32398 flow [2021-03-25 07:56:24,699 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 814 places, 1036 transitions, 32398 flow [2021-03-25 07:56:24,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 814 places, 1036 transitions, 32398 flow [2021-03-25 07:56:25,141 INFO L129 PetriNetUnfolder]: 545/1273 cut-off events. [2021-03-25 07:56:25,142 INFO L130 PetriNetUnfolder]: For 135186/135208 co-relation queries the response was YES. [2021-03-25 07:56:25,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19423 conditions, 1273 events. 545/1273 cut-off events. For 135186/135208 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 9931 event pairs, 1 based on Foata normal form. 12/1283 useless extension candidates. Maximal degree in co-relation 18978. Up to 387 conditions per place. [2021-03-25 07:56:25,200 INFO L142 LiptonReduction]: Number of co-enabled transitions 1436 [2021-03-25 07:56:25,326 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:25,326 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:25,326 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 627 [2021-03-25 07:56:25,326 INFO L480 AbstractCegarLoop]: Abstraction has has 814 places, 1036 transitions, 32398 flow [2021-03-25 07:56:25,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:25,327 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:25,327 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:25,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-03-25 07:56:25,327 INFO L428 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:25,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:25,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1308192877, now seen corresponding path program 1 times [2021-03-25 07:56:25,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:25,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728642217] [2021-03-25 07:56:25,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:25,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:25,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:25,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:25,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:25,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:25,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:25,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:25,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:25,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:25,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:25,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:25,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:25,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:25,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:25,361 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:25,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:25,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:25,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728642217] [2021-03-25 07:56:25,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:25,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:56:25,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410869827] [2021-03-25 07:56:25,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:56:25,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:25,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:56:25,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:56:25,364 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:56:25,365 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 814 places, 1036 transitions, 32398 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:25,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:25,365 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:56:25,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:26,377 INFO L129 PetriNetUnfolder]: 685/1514 cut-off events. [2021-03-25 07:56:26,377 INFO L130 PetriNetUnfolder]: For 164834/164836 co-relation queries the response was YES. [2021-03-25 07:56:26,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23979 conditions, 1514 events. 685/1514 cut-off events. For 164834/164836 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 11381 event pairs, 1 based on Foata normal form. 3/1517 useless extension candidates. Maximal degree in co-relation 23379. Up to 1290 conditions per place. [2021-03-25 07:56:26,420 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 984 selfloop transitions, 47 changer transitions 5/1041 dead transitions. [2021-03-25 07:56:26,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 820 places, 1041 transitions, 34612 flow [2021-03-25 07:56:26,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:56:26,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:56:26,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2021-03-25 07:56:26,421 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46530612244897956 [2021-03-25 07:56:26,421 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 228 transitions. [2021-03-25 07:56:26,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 228 transitions. [2021-03-25 07:56:26,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:26,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 228 transitions. [2021-03-25 07:56:26,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:26,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:26,422 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:26,422 INFO L185 Difference]: Start difference. First operand has 814 places, 1036 transitions, 32398 flow. Second operand 7 states and 228 transitions. [2021-03-25 07:56:26,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 820 places, 1041 transitions, 34612 flow [2021-03-25 07:56:28,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 773 places, 1041 transitions, 33365 flow, removed 181 selfloop flow, removed 47 redundant places. [2021-03-25 07:56:28,483 INFO L241 Difference]: Finished difference. Result has 775 places, 1032 transitions, 31113 flow [2021-03-25 07:56:28,484 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=31161, PETRI_DIFFERENCE_MINUEND_PLACES=767, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1036, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=989, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31113, PETRI_PLACES=775, PETRI_TRANSITIONS=1032} [2021-03-25 07:56:28,484 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 744 predicate places. [2021-03-25 07:56:28,484 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:28,484 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 775 places, 1032 transitions, 31113 flow [2021-03-25 07:56:28,484 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 775 places, 1032 transitions, 31113 flow [2021-03-25 07:56:28,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 775 places, 1032 transitions, 31113 flow [2021-03-25 07:56:28,953 INFO L129 PetriNetUnfolder]: 543/1268 cut-off events. [2021-03-25 07:56:28,953 INFO L130 PetriNetUnfolder]: For 110817/110867 co-relation queries the response was YES. [2021-03-25 07:56:28,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18315 conditions, 1268 events. 543/1268 cut-off events. For 110817/110867 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 9863 event pairs, 7 based on Foata normal form. 15/1282 useless extension candidates. Maximal degree in co-relation 17904. Up to 385 conditions per place. [2021-03-25 07:56:28,991 INFO L142 LiptonReduction]: Number of co-enabled transitions 1430 [2021-03-25 07:56:29,102 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:29,103 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:29,103 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 619 [2021-03-25 07:56:29,103 INFO L480 AbstractCegarLoop]: Abstraction has has 775 places, 1032 transitions, 31113 flow [2021-03-25 07:56:29,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:29,103 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:29,103 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:29,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-03-25 07:56:29,103 INFO L428 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:29,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:29,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1651715979, now seen corresponding path program 2 times [2021-03-25 07:56:29,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:29,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235601170] [2021-03-25 07:56:29,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:29,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:29,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:29,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:29,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:29,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:29,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:29,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:29,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:29,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:29,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:29,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:29,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:29,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:29,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:29,147 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:29,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:29,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:29,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235601170] [2021-03-25 07:56:29,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:29,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:56:29,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593436878] [2021-03-25 07:56:29,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:56:29,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:29,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:56:29,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:56:29,150 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:56:29,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 775 places, 1032 transitions, 31113 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:29,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:29,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:56:29,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:30,097 INFO L129 PetriNetUnfolder]: 683/1508 cut-off events. [2021-03-25 07:56:30,098 INFO L130 PetriNetUnfolder]: For 141919/141925 co-relation queries the response was YES. [2021-03-25 07:56:30,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22778 conditions, 1508 events. 683/1508 cut-off events. For 141919/141925 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 11386 event pairs, 2 based on Foata normal form. 7/1515 useless extension candidates. Maximal degree in co-relation 22221. Up to 1260 conditions per place. [2021-03-25 07:56:30,135 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 951 selfloop transitions, 79 changer transitions 4/1039 dead transitions. [2021-03-25 07:56:30,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 782 places, 1039 transitions, 33352 flow [2021-03-25 07:56:30,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:56:30,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:56:30,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 260 transitions. [2021-03-25 07:56:30,136 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2021-03-25 07:56:30,136 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 260 transitions. [2021-03-25 07:56:30,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 260 transitions. [2021-03-25 07:56:30,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:30,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 260 transitions. [2021-03-25 07:56:30,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:30,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:30,137 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:30,137 INFO L185 Difference]: Start difference. First operand has 775 places, 1032 transitions, 31113 flow. Second operand 8 states and 260 transitions. [2021-03-25 07:56:30,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 782 places, 1039 transitions, 33352 flow [2021-03-25 07:56:31,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 771 places, 1039 transitions, 33072 flow, removed 3 selfloop flow, removed 11 redundant places. [2021-03-25 07:56:31,798 INFO L241 Difference]: Finished difference. Result has 774 places, 1030 transitions, 30996 flow [2021-03-25 07:56:31,799 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=30835, PETRI_DIFFERENCE_MINUEND_PLACES=764, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1032, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=953, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=30996, PETRI_PLACES=774, PETRI_TRANSITIONS=1030} [2021-03-25 07:56:31,799 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 743 predicate places. [2021-03-25 07:56:31,799 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:31,799 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 774 places, 1030 transitions, 30996 flow [2021-03-25 07:56:31,799 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 774 places, 1030 transitions, 30996 flow [2021-03-25 07:56:31,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 774 places, 1030 transitions, 30996 flow [2021-03-25 07:56:32,217 INFO L129 PetriNetUnfolder]: 542/1261 cut-off events. [2021-03-25 07:56:32,217 INFO L130 PetriNetUnfolder]: For 106705/106726 co-relation queries the response was YES. [2021-03-25 07:56:32,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18277 conditions, 1261 events. 542/1261 cut-off events. For 106705/106726 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 9794 event pairs, 10 based on Foata normal form. 12/1272 useless extension candidates. Maximal degree in co-relation 17866. Up to 385 conditions per place. [2021-03-25 07:56:32,276 INFO L142 LiptonReduction]: Number of co-enabled transitions 1430 [2021-03-25 07:56:32,405 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:32,405 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:32,405 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 606 [2021-03-25 07:56:32,405 INFO L480 AbstractCegarLoop]: Abstraction has has 774 places, 1030 transitions, 30996 flow [2021-03-25 07:56:32,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:32,406 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:32,406 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:32,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-03-25 07:56:32,406 INFO L428 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:32,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:32,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1024808139, now seen corresponding path program 3 times [2021-03-25 07:56:32,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:32,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254978035] [2021-03-25 07:56:32,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:32,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:32,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:32,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:32,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:32,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:32,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:32,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:32,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:32,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:32,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:56:32,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:32,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:32,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:32,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:32,465 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:32,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:32,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:32,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254978035] [2021-03-25 07:56:32,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:32,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:56:32,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097280898] [2021-03-25 07:56:32,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:56:32,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:32,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:56:32,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:56:32,469 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:56:32,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 774 places, 1030 transitions, 30996 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:32,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:32,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:56:32,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:33,473 INFO L129 PetriNetUnfolder]: 682/1505 cut-off events. [2021-03-25 07:56:33,474 INFO L130 PetriNetUnfolder]: For 153027/153033 co-relation queries the response was YES. [2021-03-25 07:56:33,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22740 conditions, 1505 events. 682/1505 cut-off events. For 153027/153033 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 11298 event pairs, 81 based on Foata normal form. 7/1512 useless extension candidates. Maximal degree in co-relation 22184. Up to 1253 conditions per place. [2021-03-25 07:56:33,514 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 913 selfloop transitions, 109 changer transitions 7/1034 dead transitions. [2021-03-25 07:56:33,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 781 places, 1034 transitions, 33184 flow [2021-03-25 07:56:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:56:33,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:56:33,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 258 transitions. [2021-03-25 07:56:33,515 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4607142857142857 [2021-03-25 07:56:33,515 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 258 transitions. [2021-03-25 07:56:33,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 258 transitions. [2021-03-25 07:56:33,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:33,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 258 transitions. [2021-03-25 07:56:33,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.25) internal successors, (258), 8 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:33,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:33,516 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:33,516 INFO L185 Difference]: Start difference. First operand has 774 places, 1030 transitions, 30996 flow. Second operand 8 states and 258 transitions. [2021-03-25 07:56:33,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 781 places, 1034 transitions, 33184 flow [2021-03-25 07:56:35,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 769 places, 1034 transitions, 32933 flow, removed 5 selfloop flow, removed 12 redundant places. [2021-03-25 07:56:35,409 INFO L241 Difference]: Finished difference. Result has 771 places, 1024 transitions, 30865 flow [2021-03-25 07:56:35,410 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=30747, PETRI_DIFFERENCE_MINUEND_PLACES=762, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1030, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=921, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=30865, PETRI_PLACES=771, PETRI_TRANSITIONS=1024} [2021-03-25 07:56:35,410 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 740 predicate places. [2021-03-25 07:56:35,410 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:35,410 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 771 places, 1024 transitions, 30865 flow [2021-03-25 07:56:35,410 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 771 places, 1024 transitions, 30865 flow [2021-03-25 07:56:35,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 771 places, 1024 transitions, 30865 flow [2021-03-25 07:56:35,828 INFO L129 PetriNetUnfolder]: 539/1259 cut-off events. [2021-03-25 07:56:35,829 INFO L130 PetriNetUnfolder]: For 108050/108050 co-relation queries the response was YES. [2021-03-25 07:56:35,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18200 conditions, 1259 events. 539/1259 cut-off events. For 108050/108050 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 9752 event pairs, 2 based on Foata normal form. 0/1258 useless extension candidates. Maximal degree in co-relation 17791. Up to 383 conditions per place. [2021-03-25 07:56:35,883 INFO L142 LiptonReduction]: Number of co-enabled transitions 1424 [2021-03-25 07:56:36,006 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:36,006 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:36,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 597 [2021-03-25 07:56:36,007 INFO L480 AbstractCegarLoop]: Abstraction has has 771 places, 1024 transitions, 30865 flow [2021-03-25 07:56:36,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:36,007 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:36,007 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:36,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-03-25 07:56:36,007 INFO L428 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:36,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:36,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1898548819, now seen corresponding path program 4 times [2021-03-25 07:56:36,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:36,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967664795] [2021-03-25 07:56:36,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:36,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:36,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:36,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:36,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:36,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:36,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:36,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:36,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:36,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:36,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:56:36,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:36,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:36,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:36,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:36,049 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:36,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:36,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:36,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967664795] [2021-03-25 07:56:36,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:36,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:56:36,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640912422] [2021-03-25 07:56:36,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:56:36,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:36,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:56:36,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:56:36,052 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:56:36,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 771 places, 1024 transitions, 30865 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:36,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:36,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:56:36,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:37,040 INFO L129 PetriNetUnfolder]: 679/1497 cut-off events. [2021-03-25 07:56:37,040 INFO L130 PetriNetUnfolder]: For 148231/148237 co-relation queries the response was YES. [2021-03-25 07:56:37,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22629 conditions, 1497 events. 679/1497 cut-off events. For 148231/148237 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 11208 event pairs, 115 based on Foata normal form. 7/1504 useless extension candidates. Maximal degree in co-relation 22076. Up to 1276 conditions per place. [2021-03-25 07:56:37,079 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 961 selfloop transitions, 58 changer transitions 5/1029 dead transitions. [2021-03-25 07:56:37,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 778 places, 1029 transitions, 33047 flow [2021-03-25 07:56:37,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:56:37,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:56:37,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2021-03-25 07:56:37,080 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4625 [2021-03-25 07:56:37,080 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 259 transitions. [2021-03-25 07:56:37,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 259 transitions. [2021-03-25 07:56:37,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:37,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 259 transitions. [2021-03-25 07:56:37,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:37,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:37,081 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:37,081 INFO L185 Difference]: Start difference. First operand has 771 places, 1024 transitions, 30865 flow. Second operand 8 states and 259 transitions. [2021-03-25 07:56:37,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 778 places, 1029 transitions, 33047 flow [2021-03-25 07:56:38,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 770 places, 1029 transitions, 32791 flow, removed 5 selfloop flow, removed 8 redundant places. [2021-03-25 07:56:38,655 INFO L241 Difference]: Finished difference. Result has 772 places, 1020 transitions, 30629 flow [2021-03-25 07:56:38,655 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=30611, PETRI_DIFFERENCE_MINUEND_PLACES=763, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1024, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=966, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=30629, PETRI_PLACES=772, PETRI_TRANSITIONS=1020} [2021-03-25 07:56:38,655 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 741 predicate places. [2021-03-25 07:56:38,655 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:38,655 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 772 places, 1020 transitions, 30629 flow [2021-03-25 07:56:38,656 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 772 places, 1020 transitions, 30629 flow [2021-03-25 07:56:38,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 772 places, 1020 transitions, 30629 flow [2021-03-25 07:56:39,038 INFO L129 PetriNetUnfolder]: 538/1250 cut-off events. [2021-03-25 07:56:39,038 INFO L130 PetriNetUnfolder]: For 115154/115189 co-relation queries the response was YES. [2021-03-25 07:56:39,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18062 conditions, 1250 events. 538/1250 cut-off events. For 115154/115189 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 9648 event pairs, 1 based on Foata normal form. 15/1264 useless extension candidates. Maximal degree in co-relation 17653. Up to 382 conditions per place. [2021-03-25 07:56:39,085 INFO L142 LiptonReduction]: Number of co-enabled transitions 1424 [2021-03-25 07:56:39,202 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:39,202 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:39,202 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 547 [2021-03-25 07:56:39,202 INFO L480 AbstractCegarLoop]: Abstraction has has 772 places, 1020 transitions, 30629 flow [2021-03-25 07:56:39,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:39,203 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:39,203 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:39,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-03-25 07:56:39,203 INFO L428 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:39,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:39,203 INFO L82 PathProgramCache]: Analyzing trace with hash 822837663, now seen corresponding path program 5 times [2021-03-25 07:56:39,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:39,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905726623] [2021-03-25 07:56:39,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:39,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:39,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:39,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:39,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:39,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:39,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:39,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:39,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:39,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:39,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:56:39,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:39,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:39,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:39,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:39,262 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:39,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:39,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905726623] [2021-03-25 07:56:39,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:39,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:56:39,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407328762] [2021-03-25 07:56:39,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:56:39,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:39,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:56:39,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:56:39,265 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 70 [2021-03-25 07:56:39,265 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 772 places, 1020 transitions, 30629 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:39,265 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:39,265 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 70 [2021-03-25 07:56:39,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:40,262 INFO L129 PetriNetUnfolder]: 678/1491 cut-off events. [2021-03-25 07:56:40,262 INFO L130 PetriNetUnfolder]: For 146063/146065 co-relation queries the response was YES. [2021-03-25 07:56:40,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22492 conditions, 1491 events. 678/1491 cut-off events. For 146063/146065 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 11140 event pairs, 116 based on Foata normal form. 3/1494 useless extension candidates. Maximal degree in co-relation 21939. Up to 1256 conditions per place. [2021-03-25 07:56:40,298 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 928 selfloop transitions, 86 changer transitions 6/1025 dead transitions. [2021-03-25 07:56:40,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 779 places, 1025 transitions, 32803 flow [2021-03-25 07:56:40,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:56:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:56:40,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2021-03-25 07:56:40,299 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4625 [2021-03-25 07:56:40,299 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 259 transitions. [2021-03-25 07:56:40,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 259 transitions. [2021-03-25 07:56:40,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:40,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 259 transitions. [2021-03-25 07:56:40,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:40,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:40,300 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:40,300 INFO L185 Difference]: Start difference. First operand has 772 places, 1020 transitions, 30629 flow. Second operand 8 states and 259 transitions. [2021-03-25 07:56:40,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 779 places, 1025 transitions, 32803 flow [2021-03-25 07:56:42,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 766 places, 1025 transitions, 32552 flow, removed 12 selfloop flow, removed 13 redundant places. [2021-03-25 07:56:42,202 INFO L241 Difference]: Finished difference. Result has 768 places, 1015 transitions, 30411 flow [2021-03-25 07:56:42,203 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=30384, PETRI_DIFFERENCE_MINUEND_PLACES=759, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1020, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=934, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=30411, PETRI_PLACES=768, PETRI_TRANSITIONS=1015} [2021-03-25 07:56:42,203 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 737 predicate places. [2021-03-25 07:56:42,203 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:42,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 768 places, 1015 transitions, 30411 flow [2021-03-25 07:56:42,203 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 768 places, 1015 transitions, 30411 flow [2021-03-25 07:56:42,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 768 places, 1015 transitions, 30411 flow [2021-03-25 07:56:42,584 INFO L129 PetriNetUnfolder]: 537/1249 cut-off events. [2021-03-25 07:56:42,584 INFO L130 PetriNetUnfolder]: For 107267/107317 co-relation queries the response was YES. [2021-03-25 07:56:42,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17878 conditions, 1249 events. 537/1249 cut-off events. For 107267/107317 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 9613 event pairs, 7 based on Foata normal form. 15/1263 useless extension candidates. Maximal degree in co-relation 17473. Up to 379 conditions per place. [2021-03-25 07:56:42,630 INFO L142 LiptonReduction]: Number of co-enabled transitions 1424 [2021-03-25 07:56:42,744 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:42,745 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:42,745 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 542 [2021-03-25 07:56:42,745 INFO L480 AbstractCegarLoop]: Abstraction has has 768 places, 1015 transitions, 30411 flow [2021-03-25 07:56:42,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:42,745 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:42,745 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:42,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-03-25 07:56:42,745 INFO L428 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:42,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:42,745 INFO L82 PathProgramCache]: Analyzing trace with hash 988703658, now seen corresponding path program 2 times [2021-03-25 07:56:42,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:42,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524510612] [2021-03-25 07:56:42,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:42,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:42,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:42,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:42,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:42,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:42,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:42,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:42,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:42,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:42,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:42,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:42,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:42,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:42,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:42,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:42,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:42,806 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:42,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:42,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:42,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524510612] [2021-03-25 07:56:42,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:42,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:56:42,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240745835] [2021-03-25 07:56:42,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:56:42,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:42,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:56:42,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:56:42,809 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:56:42,809 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 768 places, 1015 transitions, 30411 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:42,809 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:42,809 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:56:42,809 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:43,830 INFO L129 PetriNetUnfolder]: 687/1514 cut-off events. [2021-03-25 07:56:43,830 INFO L130 PetriNetUnfolder]: For 154788/154788 co-relation queries the response was YES. [2021-03-25 07:56:43,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23239 conditions, 1514 events. 687/1514 cut-off events. For 154788/154788 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 11296 event pairs, 11 based on Foata normal form. 1/1515 useless extension candidates. Maximal degree in co-relation 22690. Up to 1169 conditions per place. [2021-03-25 07:56:43,869 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 910 selfloop transitions, 69 changer transitions 50/1033 dead transitions. [2021-03-25 07:56:43,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 777 places, 1033 transitions, 33373 flow [2021-03-25 07:56:43,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:56:43,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:56:43,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 07:56:43,870 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43857142857142856 [2021-03-25 07:56:43,870 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 07:56:43,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 07:56:43,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:43,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 07:56:43,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:43,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:43,871 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:43,871 INFO L185 Difference]: Start difference. First operand has 768 places, 1015 transitions, 30411 flow. Second operand 10 states and 307 transitions. [2021-03-25 07:56:43,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 777 places, 1033 transitions, 33373 flow [2021-03-25 07:56:45,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 752 places, 1033 transitions, 32819 flow, removed 37 selfloop flow, removed 25 redundant places. [2021-03-25 07:56:45,492 INFO L241 Difference]: Finished difference. Result has 759 places, 973 transitions, 28955 flow [2021-03-25 07:56:45,492 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=29905, PETRI_DIFFERENCE_MINUEND_PLACES=743, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1015, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=946, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=28955, PETRI_PLACES=759, PETRI_TRANSITIONS=973} [2021-03-25 07:56:45,493 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 728 predicate places. [2021-03-25 07:56:45,493 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:45,493 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 759 places, 973 transitions, 28955 flow [2021-03-25 07:56:45,493 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 759 places, 973 transitions, 28955 flow [2021-03-25 07:56:45,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 759 places, 973 transitions, 28955 flow [2021-03-25 07:56:45,853 INFO L129 PetriNetUnfolder]: 515/1181 cut-off events. [2021-03-25 07:56:45,853 INFO L130 PetriNetUnfolder]: For 108696/108721 co-relation queries the response was YES. [2021-03-25 07:56:45,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17030 conditions, 1181 events. 515/1181 cut-off events. For 108696/108721 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 8892 event pairs, 1 based on Foata normal form. 11/1191 useless extension candidates. Maximal degree in co-relation 16630. Up to 365 conditions per place. [2021-03-25 07:56:45,898 INFO L142 LiptonReduction]: Number of co-enabled transitions 1324 [2021-03-25 07:56:46,006 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:46,006 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:46,006 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 513 [2021-03-25 07:56:46,006 INFO L480 AbstractCegarLoop]: Abstraction has has 759 places, 973 transitions, 28955 flow [2021-03-25 07:56:46,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:46,006 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:46,006 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:46,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-03-25 07:56:46,007 INFO L428 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:46,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:46,007 INFO L82 PathProgramCache]: Analyzing trace with hash 2112175512, now seen corresponding path program 3 times [2021-03-25 07:56:46,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:46,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999051164] [2021-03-25 07:56:46,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:46,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:46,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:46,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:46,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:46,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:46,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:46,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:46,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:46,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:46,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:46,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:46,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:46,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:46,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:46,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:46,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:46,058 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:46,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:46,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:46,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999051164] [2021-03-25 07:56:46,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:46,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:56:46,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464302228] [2021-03-25 07:56:46,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:56:46,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:46,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:56:46,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:56:46,061 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:56:46,062 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 759 places, 973 transitions, 28955 flow. Second operand has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:46,062 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:46,062 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:56:46,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:46,990 INFO L129 PetriNetUnfolder]: 654/1440 cut-off events. [2021-03-25 07:56:46,990 INFO L130 PetriNetUnfolder]: For 150249/150249 co-relation queries the response was YES. [2021-03-25 07:56:47,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22208 conditions, 1440 events. 654/1440 cut-off events. For 150249/150249 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 10605 event pairs, 6 based on Foata normal form. 1/1441 useless extension candidates. Maximal degree in co-relation 21664. Up to 1183 conditions per place. [2021-03-25 07:56:47,029 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 908 selfloop transitions, 65 changer transitions 14/991 dead transitions. [2021-03-25 07:56:47,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 767 places, 991 transitions, 31931 flow [2021-03-25 07:56:47,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:56:47,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:56:47,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 277 transitions. [2021-03-25 07:56:47,030 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4396825396825397 [2021-03-25 07:56:47,030 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 277 transitions. [2021-03-25 07:56:47,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 277 transitions. [2021-03-25 07:56:47,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:47,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 277 transitions. [2021-03-25 07:56:47,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 9 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:47,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:47,031 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:47,031 INFO L185 Difference]: Start difference. First operand has 759 places, 973 transitions, 28955 flow. Second operand 9 states and 277 transitions. [2021-03-25 07:56:47,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 767 places, 991 transitions, 31931 flow [2021-03-25 07:56:48,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 713 places, 991 transitions, 31124 flow, removed 141 selfloop flow, removed 54 redundant places. [2021-03-25 07:56:48,533 INFO L241 Difference]: Finished difference. Result has 720 places, 968 transitions, 28398 flow [2021-03-25 07:56:48,534 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=28196, PETRI_DIFFERENCE_MINUEND_PLACES=705, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=973, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=908, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=28398, PETRI_PLACES=720, PETRI_TRANSITIONS=968} [2021-03-25 07:56:48,534 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 689 predicate places. [2021-03-25 07:56:48,534 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:48,534 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 720 places, 968 transitions, 28398 flow [2021-03-25 07:56:48,534 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 720 places, 968 transitions, 28398 flow [2021-03-25 07:56:48,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 720 places, 968 transitions, 28398 flow [2021-03-25 07:56:48,885 INFO L129 PetriNetUnfolder]: 512/1180 cut-off events. [2021-03-25 07:56:48,885 INFO L130 PetriNetUnfolder]: For 101942/101984 co-relation queries the response was YES. [2021-03-25 07:56:48,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16753 conditions, 1180 events. 512/1180 cut-off events. For 101942/101984 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 8953 event pairs, 0 based on Foata normal form. 11/1190 useless extension candidates. Maximal degree in co-relation 16380. Up to 363 conditions per place. [2021-03-25 07:56:48,926 INFO L142 LiptonReduction]: Number of co-enabled transitions 1320 [2021-03-25 07:56:49,036 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:49,036 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:49,036 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 502 [2021-03-25 07:56:49,036 INFO L480 AbstractCegarLoop]: Abstraction has has 720 places, 968 transitions, 28398 flow [2021-03-25 07:56:49,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:49,036 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:49,036 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:49,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-03-25 07:56:49,036 INFO L428 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:49,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:49,037 INFO L82 PathProgramCache]: Analyzing trace with hash 494836928, now seen corresponding path program 4 times [2021-03-25 07:56:49,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:49,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700816881] [2021-03-25 07:56:49,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:49,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:49,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:49,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:49,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:49,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:49,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:49,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:49,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:49,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:49,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:49,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:49,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:56:49,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:49,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:49,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:49,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:49,120 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:49,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:49,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:49,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700816881] [2021-03-25 07:56:49,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:49,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:56:49,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011093480] [2021-03-25 07:56:49,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:56:49,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:49,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:56:49,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:56:49,123 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:56:49,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 720 places, 968 transitions, 28398 flow. Second operand has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:49,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:49,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:56:49,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:50,083 INFO L129 PetriNetUnfolder]: 651/1429 cut-off events. [2021-03-25 07:56:50,083 INFO L130 PetriNetUnfolder]: For 135502/135502 co-relation queries the response was YES. [2021-03-25 07:56:50,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21825 conditions, 1429 events. 651/1429 cut-off events. For 135502/135502 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 10485 event pairs, 3 based on Foata normal form. 1/1430 useless extension candidates. Maximal degree in co-relation 21319. Up to 1167 conditions per place. [2021-03-25 07:56:50,117 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 913 selfloop transitions, 57 changer transitions 14/988 dead transitions. [2021-03-25 07:56:50,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 728 places, 988 transitions, 31460 flow [2021-03-25 07:56:50,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:56:50,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:56:50,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 278 transitions. [2021-03-25 07:56:50,118 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44126984126984126 [2021-03-25 07:56:50,118 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 278 transitions. [2021-03-25 07:56:50,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 278 transitions. [2021-03-25 07:56:50,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:50,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 278 transitions. [2021-03-25 07:56:50,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:50,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:50,119 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:50,119 INFO L185 Difference]: Start difference. First operand has 720 places, 968 transitions, 28398 flow. Second operand 9 states and 278 transitions. [2021-03-25 07:56:50,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 728 places, 988 transitions, 31460 flow [2021-03-25 07:56:51,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 711 places, 988 transitions, 31099 flow, removed 63 selfloop flow, removed 17 redundant places. [2021-03-25 07:56:51,707 INFO L241 Difference]: Finished difference. Result has 718 places, 964 transitions, 28277 flow [2021-03-25 07:56:51,707 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=28073, PETRI_DIFFERENCE_MINUEND_PLACES=703, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=28277, PETRI_PLACES=718, PETRI_TRANSITIONS=964} [2021-03-25 07:56:51,707 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 687 predicate places. [2021-03-25 07:56:51,707 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:51,707 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 718 places, 964 transitions, 28277 flow [2021-03-25 07:56:51,707 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 718 places, 964 transitions, 28277 flow [2021-03-25 07:56:51,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 718 places, 964 transitions, 28277 flow [2021-03-25 07:56:52,050 INFO L129 PetriNetUnfolder]: 510/1177 cut-off events. [2021-03-25 07:56:52,050 INFO L130 PetriNetUnfolder]: For 104658/104689 co-relation queries the response was YES. [2021-03-25 07:56:52,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16716 conditions, 1177 events. 510/1177 cut-off events. For 104658/104689 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 8895 event pairs, 2 based on Foata normal form. 9/1185 useless extension candidates. Maximal degree in co-relation 16343. Up to 359 conditions per place. [2021-03-25 07:56:52,090 INFO L142 LiptonReduction]: Number of co-enabled transitions 1324 [2021-03-25 07:56:52,240 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:52,241 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:52,241 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 534 [2021-03-25 07:56:52,241 INFO L480 AbstractCegarLoop]: Abstraction has has 718 places, 964 transitions, 28277 flow [2021-03-25 07:56:52,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:52,241 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:52,241 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:52,241 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-03-25 07:56:52,241 INFO L428 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:52,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:52,241 INFO L82 PathProgramCache]: Analyzing trace with hash -375930522, now seen corresponding path program 5 times [2021-03-25 07:56:52,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:52,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290754755] [2021-03-25 07:56:52,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:52,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:52,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:52,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:52,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:52,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:52,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:52,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:52,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:52,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:52,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:52,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:52,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:56:52,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:52,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:52,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:52,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:52,317 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:52,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:52,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:52,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290754755] [2021-03-25 07:56:52,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:52,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:56:52,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780021777] [2021-03-25 07:56:52,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:56:52,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:52,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:56:52,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:56:52,321 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:56:52,321 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 718 places, 964 transitions, 28277 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:52,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:52,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:56:52,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:53,242 INFO L129 PetriNetUnfolder]: 647/1425 cut-off events. [2021-03-25 07:56:53,242 INFO L130 PetriNetUnfolder]: For 133330/133330 co-relation queries the response was YES. [2021-03-25 07:56:53,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21643 conditions, 1425 events. 647/1425 cut-off events. For 133330/133330 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 10499 event pairs, 2 based on Foata normal form. 1/1426 useless extension candidates. Maximal degree in co-relation 21138. Up to 1184 conditions per place. [2021-03-25 07:56:53,275 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 912 selfloop transitions, 51 changer transitions 13/980 dead transitions. [2021-03-25 07:56:53,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 727 places, 980 transitions, 31015 flow [2021-03-25 07:56:53,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:56:53,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:56:53,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 07:56:53,276 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43714285714285717 [2021-03-25 07:56:53,277 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 07:56:53,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 07:56:53,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:53,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 07:56:53,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:53,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:53,277 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:53,277 INFO L185 Difference]: Start difference. First operand has 718 places, 964 transitions, 28277 flow. Second operand 10 states and 306 transitions. [2021-03-25 07:56:53,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 727 places, 980 transitions, 31015 flow [2021-03-25 07:56:54,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 712 places, 980 transitions, 30516 flow, removed 157 selfloop flow, removed 15 redundant places. [2021-03-25 07:56:54,756 INFO L241 Difference]: Finished difference. Result has 718 places, 958 transitions, 27852 flow [2021-03-25 07:56:54,757 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=27806, PETRI_DIFFERENCE_MINUEND_PLACES=703, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=913, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=27852, PETRI_PLACES=718, PETRI_TRANSITIONS=958} [2021-03-25 07:56:54,757 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 687 predicate places. [2021-03-25 07:56:54,757 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:54,757 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 718 places, 958 transitions, 27852 flow [2021-03-25 07:56:54,757 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 718 places, 958 transitions, 27852 flow [2021-03-25 07:56:54,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 718 places, 958 transitions, 27852 flow [2021-03-25 07:56:55,081 INFO L129 PetriNetUnfolder]: 506/1164 cut-off events. [2021-03-25 07:56:55,082 INFO L130 PetriNetUnfolder]: For 103986/104017 co-relation queries the response was YES. [2021-03-25 07:56:55,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16488 conditions, 1164 events. 506/1164 cut-off events. For 103986/104017 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 8810 event pairs, 0 based on Foata normal form. 9/1172 useless extension candidates. Maximal degree in co-relation 16116. Up to 353 conditions per place. [2021-03-25 07:56:55,122 INFO L142 LiptonReduction]: Number of co-enabled transitions 1328 [2021-03-25 07:56:55,221 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:55,221 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:55,221 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 464 [2021-03-25 07:56:55,221 INFO L480 AbstractCegarLoop]: Abstraction has has 718 places, 958 transitions, 27852 flow [2021-03-25 07:56:55,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:55,222 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:55,222 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:55,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-03-25 07:56:55,222 INFO L428 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:55,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:55,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2132167898, now seen corresponding path program 6 times [2021-03-25 07:56:55,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:55,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337429877] [2021-03-25 07:56:55,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:55,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:55,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:55,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:55,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:55,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:55,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:55,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:55,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:55,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:55,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:55,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:55,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:56:55,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:55,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:55,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:55,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:55,296 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:55,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:55,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337429877] [2021-03-25 07:56:55,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:55,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:56:55,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728426134] [2021-03-25 07:56:55,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:56:55,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:55,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:56:55,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:56:55,299 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:56:55,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 718 places, 958 transitions, 27852 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:55,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:55,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:56:55,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:56,236 INFO L129 PetriNetUnfolder]: 642/1416 cut-off events. [2021-03-25 07:56:56,237 INFO L130 PetriNetUnfolder]: For 130145/130145 co-relation queries the response was YES. [2021-03-25 07:56:56,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21266 conditions, 1416 events. 642/1416 cut-off events. For 130145/130145 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 10496 event pairs, 3 based on Foata normal form. 1/1417 useless extension candidates. Maximal degree in co-relation 20763. Up to 1138 conditions per place. [2021-03-25 07:56:56,273 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 872 selfloop transitions, 81 changer transitions 16/973 dead transitions. [2021-03-25 07:56:56,273 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 727 places, 973 transitions, 30350 flow [2021-03-25 07:56:56,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:56:56,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:56:56,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 07:56:56,274 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43857142857142856 [2021-03-25 07:56:56,274 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 07:56:56,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 07:56:56,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:56,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 07:56:56,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:56,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:56,275 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:56,275 INFO L185 Difference]: Start difference. First operand has 718 places, 958 transitions, 27852 flow. Second operand 10 states and 307 transitions. [2021-03-25 07:56:56,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 727 places, 973 transitions, 30350 flow [2021-03-25 07:56:57,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 712 places, 973 transitions, 30103 flow, removed 54 selfloop flow, removed 15 redundant places. [2021-03-25 07:56:57,674 INFO L241 Difference]: Finished difference. Result has 717 places, 947 transitions, 27454 flow [2021-03-25 07:56:57,675 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=27621, PETRI_DIFFERENCE_MINUEND_PLACES=703, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=877, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=27454, PETRI_PLACES=717, PETRI_TRANSITIONS=947} [2021-03-25 07:56:57,675 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 686 predicate places. [2021-03-25 07:56:57,675 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:56:57,675 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 717 places, 947 transitions, 27454 flow [2021-03-25 07:56:57,675 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 717 places, 947 transitions, 27454 flow [2021-03-25 07:56:57,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 717 places, 947 transitions, 27454 flow [2021-03-25 07:56:58,051 INFO L129 PetriNetUnfolder]: 500/1148 cut-off events. [2021-03-25 07:56:58,051 INFO L130 PetriNetUnfolder]: For 94105/94130 co-relation queries the response was YES. [2021-03-25 07:56:58,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16283 conditions, 1148 events. 500/1148 cut-off events. For 94105/94130 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 8631 event pairs, 2 based on Foata normal form. 11/1157 useless extension candidates. Maximal degree in co-relation 15913. Up to 347 conditions per place. [2021-03-25 07:56:58,087 INFO L142 LiptonReduction]: Number of co-enabled transitions 1322 [2021-03-25 07:56:58,180 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:56:58,180 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:56:58,180 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 505 [2021-03-25 07:56:58,180 INFO L480 AbstractCegarLoop]: Abstraction has has 717 places, 947 transitions, 27454 flow [2021-03-25 07:56:58,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:58,180 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:56:58,180 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:56:58,181 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-03-25 07:56:58,181 INFO L428 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:56:58,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:56:58,181 INFO L82 PathProgramCache]: Analyzing trace with hash -2104977856, now seen corresponding path program 7 times [2021-03-25 07:56:58,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:56:58,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288539465] [2021-03-25 07:56:58,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:56:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:56:58,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:58,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:58,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:58,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:58,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:58,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:58,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:58,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:58,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:58,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:58,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:58,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:56:58,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:58,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:56:58,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:56:58,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:56:58,245 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:56:58,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:56:58,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:56:58,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288539465] [2021-03-25 07:56:58,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:56:58,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:56:58,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042217591] [2021-03-25 07:56:58,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:56:58,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:56:58,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:56:58,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:56:58,249 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:56:58,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 717 places, 947 transitions, 27454 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:58,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:56:58,250 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:56:58,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:56:59,191 INFO L129 PetriNetUnfolder]: 640/1413 cut-off events. [2021-03-25 07:56:59,191 INFO L130 PetriNetUnfolder]: For 133726/133726 co-relation queries the response was YES. [2021-03-25 07:56:59,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21471 conditions, 1413 events. 640/1413 cut-off events. For 133726/133726 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 10423 event pairs, 1 based on Foata normal form. 1/1414 useless extension candidates. Maximal degree in co-relation 20970. Up to 1129 conditions per place. [2021-03-25 07:56:59,240 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 841 selfloop transitions, 90 changer transitions 33/968 dead transitions. [2021-03-25 07:56:59,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 726 places, 968 transitions, 30718 flow [2021-03-25 07:56:59,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:56:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:56:59,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 07:56:59,242 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43714285714285717 [2021-03-25 07:56:59,242 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 07:56:59,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 07:56:59,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:56:59,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 07:56:59,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:59,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:59,243 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:56:59,243 INFO L185 Difference]: Start difference. First operand has 717 places, 947 transitions, 27454 flow. Second operand 10 states and 306 transitions. [2021-03-25 07:56:59,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 726 places, 968 transitions, 30718 flow [2021-03-25 07:57:00,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 706 places, 968 transitions, 30372 flow, removed 29 selfloop flow, removed 20 redundant places. [2021-03-25 07:57:00,595 INFO L241 Difference]: Finished difference. Result has 713 places, 926 transitions, 27047 flow [2021-03-25 07:57:00,596 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=27150, PETRI_DIFFERENCE_MINUEND_PLACES=697, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=858, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=27047, PETRI_PLACES=713, PETRI_TRANSITIONS=926} [2021-03-25 07:57:00,596 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 682 predicate places. [2021-03-25 07:57:00,596 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:00,596 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 713 places, 926 transitions, 27047 flow [2021-03-25 07:57:00,596 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 713 places, 926 transitions, 27047 flow [2021-03-25 07:57:00,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 713 places, 926 transitions, 27047 flow [2021-03-25 07:57:00,918 INFO L129 PetriNetUnfolder]: 488/1135 cut-off events. [2021-03-25 07:57:00,918 INFO L130 PetriNetUnfolder]: For 99995/100026 co-relation queries the response was YES. [2021-03-25 07:57:00,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16098 conditions, 1135 events. 488/1135 cut-off events. For 99995/100026 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 8617 event pairs, 0 based on Foata normal form. 9/1143 useless extension candidates. Maximal degree in co-relation 15730. Up to 333 conditions per place. [2021-03-25 07:57:00,957 INFO L142 LiptonReduction]: Number of co-enabled transitions 1320 [2021-03-25 07:57:01,054 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:01,054 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:01,054 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 458 [2021-03-25 07:57:01,055 INFO L480 AbstractCegarLoop]: Abstraction has has 713 places, 926 transitions, 27047 flow [2021-03-25 07:57:01,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:01,055 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:01,055 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:01,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-03-25 07:57:01,055 INFO L428 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:01,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:01,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1091552900, now seen corresponding path program 8 times [2021-03-25 07:57:01,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:01,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685745284] [2021-03-25 07:57:01,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:01,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:01,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:01,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:01,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:01,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:01,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:01,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:01,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:01,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:01,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:01,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:01,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:01,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:01,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:01,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:01,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:01,109 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:01,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:01,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685745284] [2021-03-25 07:57:01,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:01,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:57:01,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011660432] [2021-03-25 07:57:01,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:57:01,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:01,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:57:01,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:57:01,112 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:01,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 713 places, 926 transitions, 27047 flow. Second operand has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:01,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:01,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:01,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:01,991 INFO L129 PetriNetUnfolder]: 624/1383 cut-off events. [2021-03-25 07:57:01,991 INFO L130 PetriNetUnfolder]: For 128645/128645 co-relation queries the response was YES. [2021-03-25 07:57:02,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20921 conditions, 1383 events. 624/1383 cut-off events. For 128645/128645 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 10145 event pairs, 3 based on Foata normal form. 1/1384 useless extension candidates. Maximal degree in co-relation 20424. Up to 1124 conditions per place. [2021-03-25 07:57:02,024 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 874 selfloop transitions, 51 changer transitions 15/944 dead transitions. [2021-03-25 07:57:02,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 721 places, 944 transitions, 29744 flow [2021-03-25 07:57:02,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:57:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:57:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 278 transitions. [2021-03-25 07:57:02,025 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44126984126984126 [2021-03-25 07:57:02,025 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 278 transitions. [2021-03-25 07:57:02,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 278 transitions. [2021-03-25 07:57:02,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:02,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 278 transitions. [2021-03-25 07:57:02,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:02,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:02,026 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:02,026 INFO L185 Difference]: Start difference. First operand has 713 places, 926 transitions, 27047 flow. Second operand 9 states and 278 transitions. [2021-03-25 07:57:02,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 721 places, 944 transitions, 29744 flow [2021-03-25 07:57:03,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 698 places, 944 transitions, 29155 flow, removed 156 selfloop flow, removed 23 redundant places. [2021-03-25 07:57:03,574 INFO L241 Difference]: Finished difference. Result has 705 places, 919 transitions, 26568 flow [2021-03-25 07:57:03,574 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=26484, PETRI_DIFFERENCE_MINUEND_PLACES=690, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=875, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=26568, PETRI_PLACES=705, PETRI_TRANSITIONS=919} [2021-03-25 07:57:03,574 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 674 predicate places. [2021-03-25 07:57:03,574 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:03,575 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 705 places, 919 transitions, 26568 flow [2021-03-25 07:57:03,575 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 705 places, 919 transitions, 26568 flow [2021-03-25 07:57:03,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 705 places, 919 transitions, 26568 flow [2021-03-25 07:57:03,988 INFO L129 PetriNetUnfolder]: 484/1138 cut-off events. [2021-03-25 07:57:03,988 INFO L130 PetriNetUnfolder]: For 95884/95909 co-relation queries the response was YES. [2021-03-25 07:57:04,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15875 conditions, 1138 events. 484/1138 cut-off events. For 95884/95909 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 8693 event pairs, 0 based on Foata normal form. 11/1149 useless extension candidates. Maximal degree in co-relation 15511. Up to 329 conditions per place. [2021-03-25 07:57:04,023 INFO L142 LiptonReduction]: Number of co-enabled transitions 1312 [2021-03-25 07:57:04,110 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:04,110 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:04,110 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 536 [2021-03-25 07:57:04,110 INFO L480 AbstractCegarLoop]: Abstraction has has 705 places, 919 transitions, 26568 flow [2021-03-25 07:57:04,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:04,111 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:04,111 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:04,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-03-25 07:57:04,111 INFO L428 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:04,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:04,111 INFO L82 PathProgramCache]: Analyzing trace with hash 526416340, now seen corresponding path program 9 times [2021-03-25 07:57:04,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:04,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215996695] [2021-03-25 07:57:04,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:04,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:04,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:04,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:04,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:04,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:04,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:04,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:04,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:04,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:04,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:04,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:04,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:04,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:04,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:04,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:04,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:04,174 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:04,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:04,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215996695] [2021-03-25 07:57:04,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:04,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:04,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114624729] [2021-03-25 07:57:04,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:04,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:04,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:04,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:04,178 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:04,178 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 705 places, 919 transitions, 26568 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:04,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:04,178 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:04,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:05,103 INFO L129 PetriNetUnfolder]: 620/1379 cut-off events. [2021-03-25 07:57:05,104 INFO L130 PetriNetUnfolder]: For 126363/126363 co-relation queries the response was YES. [2021-03-25 07:57:05,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20670 conditions, 1379 events. 620/1379 cut-off events. For 126363/126363 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 10143 event pairs, 1 based on Foata normal form. 1/1380 useless extension candidates. Maximal degree in co-relation 20179. Up to 1114 conditions per place. [2021-03-25 07:57:05,138 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 820 selfloop transitions, 95 changer transitions 15/934 dead transitions. [2021-03-25 07:57:05,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 714 places, 934 transitions, 29212 flow [2021-03-25 07:57:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:05,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2021-03-25 07:57:05,139 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4357142857142857 [2021-03-25 07:57:05,139 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 305 transitions. [2021-03-25 07:57:05,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 305 transitions. [2021-03-25 07:57:05,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:05,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 305 transitions. [2021-03-25 07:57:05,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.5) internal successors, (305), 10 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:05,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:05,140 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:05,140 INFO L185 Difference]: Start difference. First operand has 705 places, 919 transitions, 26568 flow. Second operand 10 states and 305 transitions. [2021-03-25 07:57:05,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 714 places, 934 transitions, 29212 flow [2021-03-25 07:57:06,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 693 places, 934 transitions, 28872 flow, removed 61 selfloop flow, removed 21 redundant places. [2021-03-25 07:57:06,534 INFO L241 Difference]: Finished difference. Result has 699 places, 911 transitions, 26304 flow [2021-03-25 07:57:06,535 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=26246, PETRI_DIFFERENCE_MINUEND_PLACES=684, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=824, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=26304, PETRI_PLACES=699, PETRI_TRANSITIONS=911} [2021-03-25 07:57:06,535 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 668 predicate places. [2021-03-25 07:57:06,535 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:06,535 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 699 places, 911 transitions, 26304 flow [2021-03-25 07:57:06,536 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 699 places, 911 transitions, 26304 flow [2021-03-25 07:57:06,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 699 places, 911 transitions, 26304 flow [2021-03-25 07:57:06,878 INFO L129 PetriNetUnfolder]: 479/1135 cut-off events. [2021-03-25 07:57:06,878 INFO L130 PetriNetUnfolder]: For 88648/88673 co-relation queries the response was YES. [2021-03-25 07:57:06,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15760 conditions, 1135 events. 479/1135 cut-off events. For 88648/88673 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 8715 event pairs, 5 based on Foata normal form. 11/1145 useless extension candidates. Maximal degree in co-relation 15402. Up to 325 conditions per place. [2021-03-25 07:57:06,919 INFO L142 LiptonReduction]: Number of co-enabled transitions 1316 [2021-03-25 07:57:07,013 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:07,013 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:07,013 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 478 [2021-03-25 07:57:07,014 INFO L480 AbstractCegarLoop]: Abstraction has has 699 places, 911 transitions, 26304 flow [2021-03-25 07:57:07,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:07,014 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:07,014 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:07,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-03-25 07:57:07,014 INFO L428 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:07,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:07,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1116104030, now seen corresponding path program 10 times [2021-03-25 07:57:07,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:07,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140984935] [2021-03-25 07:57:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:07,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:07,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:07,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:07,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:07,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:07,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:07,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:07,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:07,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:07,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:07,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:07,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:07,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:07,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:07,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:07,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:07,078 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:07,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:07,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140984935] [2021-03-25 07:57:07,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:07,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:07,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501172233] [2021-03-25 07:57:07,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:07,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:07,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:07,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:07,082 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:07,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 699 places, 911 transitions, 26304 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:07,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:07,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:07,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:07,980 INFO L129 PetriNetUnfolder]: 614/1367 cut-off events. [2021-03-25 07:57:07,980 INFO L130 PetriNetUnfolder]: For 121785/121785 co-relation queries the response was YES. [2021-03-25 07:57:08,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20362 conditions, 1367 events. 614/1367 cut-off events. For 121785/121785 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 10061 event pairs, 2 based on Foata normal form. 1/1368 useless extension candidates. Maximal degree in co-relation 19880. Up to 1098 conditions per place. [2021-03-25 07:57:08,013 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 835 selfloop transitions, 75 changer transitions 12/926 dead transitions. [2021-03-25 07:57:08,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 708 places, 926 transitions, 28708 flow [2021-03-25 07:57:08,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:08,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 07:57:08,014 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43857142857142856 [2021-03-25 07:57:08,014 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 07:57:08,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 07:57:08,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:08,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 07:57:08,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:08,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:08,015 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:08,015 INFO L185 Difference]: Start difference. First operand has 699 places, 911 transitions, 26304 flow. Second operand 10 states and 307 transitions. [2021-03-25 07:57:08,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 708 places, 926 transitions, 28708 flow [2021-03-25 07:57:09,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 694 places, 926 transitions, 28289 flow, removed 95 selfloop flow, removed 14 redundant places. [2021-03-25 07:57:09,304 INFO L241 Difference]: Finished difference. Result has 699 places, 904 transitions, 25899 flow [2021-03-25 07:57:09,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=25907, PETRI_DIFFERENCE_MINUEND_PLACES=685, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=911, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=836, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=25899, PETRI_PLACES=699, PETRI_TRANSITIONS=904} [2021-03-25 07:57:09,305 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 668 predicate places. [2021-03-25 07:57:09,305 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:09,305 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 699 places, 904 transitions, 25899 flow [2021-03-25 07:57:09,305 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 699 places, 904 transitions, 25899 flow [2021-03-25 07:57:09,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 699 places, 904 transitions, 25899 flow [2021-03-25 07:57:09,640 INFO L129 PetriNetUnfolder]: 475/1119 cut-off events. [2021-03-25 07:57:09,640 INFO L130 PetriNetUnfolder]: For 90314/90356 co-relation queries the response was YES. [2021-03-25 07:57:09,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15531 conditions, 1119 events. 475/1119 cut-off events. For 90314/90356 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 8504 event pairs, 2 based on Foata normal form. 11/1129 useless extension candidates. Maximal degree in co-relation 15174. Up to 323 conditions per place. [2021-03-25 07:57:09,674 INFO L142 LiptonReduction]: Number of co-enabled transitions 1312 [2021-03-25 07:57:09,756 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:09,756 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:09,756 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 451 [2021-03-25 07:57:09,756 INFO L480 AbstractCegarLoop]: Abstraction has has 699 places, 904 transitions, 25899 flow [2021-03-25 07:57:09,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:09,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:09,756 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:09,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-03-25 07:57:09,757 INFO L428 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:09,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:09,757 INFO L82 PathProgramCache]: Analyzing trace with hash 483905122, now seen corresponding path program 11 times [2021-03-25 07:57:09,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:09,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150212667] [2021-03-25 07:57:09,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:09,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:09,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:09,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:09,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:09,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:09,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:09,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:09,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:09,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:09,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:09,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:09,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:09,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:09,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:09,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:09,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:09,808 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:09,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:09,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:09,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150212667] [2021-03-25 07:57:09,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:09,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:57:09,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541687135] [2021-03-25 07:57:09,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:57:09,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:09,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:57:09,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:57:09,811 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:09,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 699 places, 904 transitions, 25899 flow. Second operand has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:09,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:09,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:09,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:10,628 INFO L129 PetriNetUnfolder]: 609/1356 cut-off events. [2021-03-25 07:57:10,628 INFO L130 PetriNetUnfolder]: For 114581/114581 co-relation queries the response was YES. [2021-03-25 07:57:10,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19991 conditions, 1356 events. 609/1356 cut-off events. For 114581/114581 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 9978 event pairs, 1 based on Foata normal form. 1/1357 useless extension candidates. Maximal degree in co-relation 19510. Up to 1119 conditions per place. [2021-03-25 07:57:10,661 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 850 selfloop transitions, 50 changer transitions 11/915 dead transitions. [2021-03-25 07:57:10,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 707 places, 915 transitions, 27957 flow [2021-03-25 07:57:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:57:10,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:57:10,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 277 transitions. [2021-03-25 07:57:10,662 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4396825396825397 [2021-03-25 07:57:10,663 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 277 transitions. [2021-03-25 07:57:10,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 277 transitions. [2021-03-25 07:57:10,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:10,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 277 transitions. [2021-03-25 07:57:10,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 9 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:10,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:10,663 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:10,663 INFO L185 Difference]: Start difference. First operand has 699 places, 904 transitions, 25899 flow. Second operand 9 states and 277 transitions. [2021-03-25 07:57:10,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 707 places, 915 transitions, 27957 flow [2021-03-25 07:57:11,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 690 places, 915 transitions, 27695 flow, removed 10 selfloop flow, removed 17 redundant places. [2021-03-25 07:57:11,890 INFO L241 Difference]: Finished difference. Result has 693 places, 895 transitions, 25517 flow [2021-03-25 07:57:11,890 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=25643, PETRI_DIFFERENCE_MINUEND_PLACES=682, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=854, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=25517, PETRI_PLACES=693, PETRI_TRANSITIONS=895} [2021-03-25 07:57:11,890 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 662 predicate places. [2021-03-25 07:57:11,890 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:11,890 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 693 places, 895 transitions, 25517 flow [2021-03-25 07:57:11,890 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 693 places, 895 transitions, 25517 flow [2021-03-25 07:57:11,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 693 places, 895 transitions, 25517 flow [2021-03-25 07:57:12,204 INFO L129 PetriNetUnfolder]: 470/1104 cut-off events. [2021-03-25 07:57:12,204 INFO L130 PetriNetUnfolder]: For 89652/89683 co-relation queries the response was YES. [2021-03-25 07:57:12,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15298 conditions, 1104 events. 470/1104 cut-off events. For 89652/89683 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 8383 event pairs, 1 based on Foata normal form. 9/1112 useless extension candidates. Maximal degree in co-relation 14945. Up to 319 conditions per place. [2021-03-25 07:57:12,245 INFO L142 LiptonReduction]: Number of co-enabled transitions 1294 [2021-03-25 07:57:12,341 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:12,341 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:12,342 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 452 [2021-03-25 07:57:12,342 INFO L480 AbstractCegarLoop]: Abstraction has has 693 places, 895 transitions, 25517 flow [2021-03-25 07:57:12,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:12,342 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:12,342 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:12,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-03-25 07:57:12,342 INFO L428 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:12,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:12,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1769683074, now seen corresponding path program 12 times [2021-03-25 07:57:12,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:12,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287757018] [2021-03-25 07:57:12,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:12,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:12,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:12,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:12,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:12,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:12,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:12,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:12,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:12,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:12,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:12,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:12,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:12,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:12,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:12,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:12,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:12,404 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:12,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:12,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:12,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287757018] [2021-03-25 07:57:12,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:12,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:12,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393552852] [2021-03-25 07:57:12,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:12,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:12,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:12,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:12,407 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:12,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 693 places, 895 transitions, 25517 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:12,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:12,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:12,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:13,288 INFO L129 PetriNetUnfolder]: 605/1349 cut-off events. [2021-03-25 07:57:13,288 INFO L130 PetriNetUnfolder]: For 113795/113795 co-relation queries the response was YES. [2021-03-25 07:57:13,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19890 conditions, 1349 events. 605/1349 cut-off events. For 113795/113795 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 9914 event pairs, 1 based on Foata normal form. 1/1350 useless extension candidates. Maximal degree in co-relation 19413. Up to 1115 conditions per place. [2021-03-25 07:57:13,322 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 843 selfloop transitions, 50 changer transitions 13/910 dead transitions. [2021-03-25 07:57:13,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 702 places, 910 transitions, 27897 flow [2021-03-25 07:57:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:13,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:13,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 07:57:13,324 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43714285714285717 [2021-03-25 07:57:13,324 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 07:57:13,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 07:57:13,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:13,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 07:57:13,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:13,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:13,324 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:13,325 INFO L185 Difference]: Start difference. First operand has 693 places, 895 transitions, 25517 flow. Second operand 10 states and 306 transitions. [2021-03-25 07:57:13,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 702 places, 910 transitions, 27897 flow [2021-03-25 07:57:14,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 682 places, 910 transitions, 27679 flow, removed 6 selfloop flow, removed 20 redundant places. [2021-03-25 07:57:14,557 INFO L241 Difference]: Finished difference. Result has 688 places, 888 transitions, 25225 flow [2021-03-25 07:57:14,558 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=25305, PETRI_DIFFERENCE_MINUEND_PLACES=673, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=895, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=845, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=25225, PETRI_PLACES=688, PETRI_TRANSITIONS=888} [2021-03-25 07:57:14,558 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 657 predicate places. [2021-03-25 07:57:14,558 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:14,558 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 688 places, 888 transitions, 25225 flow [2021-03-25 07:57:14,558 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 688 places, 888 transitions, 25225 flow [2021-03-25 07:57:14,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 688 places, 888 transitions, 25225 flow [2021-03-25 07:57:14,929 INFO L129 PetriNetUnfolder]: 466/1097 cut-off events. [2021-03-25 07:57:14,929 INFO L130 PetriNetUnfolder]: For 90743/90774 co-relation queries the response was YES. [2021-03-25 07:57:14,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15175 conditions, 1097 events. 466/1097 cut-off events. For 90743/90774 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 8302 event pairs, 0 based on Foata normal form. 9/1106 useless extension candidates. Maximal degree in co-relation 14828. Up to 317 conditions per place. [2021-03-25 07:57:14,961 INFO L142 LiptonReduction]: Number of co-enabled transitions 1290 [2021-03-25 07:57:15,045 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:15,045 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:15,045 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 487 [2021-03-25 07:57:15,045 INFO L480 AbstractCegarLoop]: Abstraction has has 688 places, 888 transitions, 25225 flow [2021-03-25 07:57:15,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:15,045 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:15,045 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:15,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-03-25 07:57:15,046 INFO L428 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:15,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:15,046 INFO L82 PathProgramCache]: Analyzing trace with hash -2100448866, now seen corresponding path program 13 times [2021-03-25 07:57:15,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:15,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902597861] [2021-03-25 07:57:15,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:15,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:15,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:15,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:15,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:15,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:15,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:15,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:15,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:15,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:15,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:15,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:15,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:15,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:15,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:15,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:15,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:15,108 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:15,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:15,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902597861] [2021-03-25 07:57:15,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:15,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:15,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061559242] [2021-03-25 07:57:15,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:15,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:15,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:15,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:15,111 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:15,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 688 places, 888 transitions, 25225 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:15,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:15,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:15,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:15,961 INFO L129 PetriNetUnfolder]: 601/1343 cut-off events. [2021-03-25 07:57:15,961 INFO L130 PetriNetUnfolder]: For 111173/111173 co-relation queries the response was YES. [2021-03-25 07:57:15,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19732 conditions, 1343 events. 601/1343 cut-off events. For 111173/111173 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 9861 event pairs, 2 based on Foata normal form. 1/1344 useless extension candidates. Maximal degree in co-relation 19266. Up to 1094 conditions per place. [2021-03-25 07:57:15,994 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 818 selfloop transitions, 63 changer transitions 17/902 dead transitions. [2021-03-25 07:57:15,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 697 places, 902 transitions, 27573 flow [2021-03-25 07:57:15,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:15,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:15,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 07:57:15,995 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43714285714285717 [2021-03-25 07:57:15,995 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 07:57:15,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 07:57:15,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:15,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 07:57:15,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:15,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:15,996 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:15,996 INFO L185 Difference]: Start difference. First operand has 688 places, 888 transitions, 25225 flow. Second operand 10 states and 306 transitions. [2021-03-25 07:57:15,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 697 places, 902 transitions, 27573 flow [2021-03-25 07:57:17,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 675 places, 902 transitions, 27326 flow, removed 18 selfloop flow, removed 22 redundant places. [2021-03-25 07:57:17,229 INFO L241 Difference]: Finished difference. Result has 680 places, 876 transitions, 24760 flow [2021-03-25 07:57:17,230 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=24998, PETRI_DIFFERENCE_MINUEND_PLACES=666, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=888, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=825, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=24760, PETRI_PLACES=680, PETRI_TRANSITIONS=876} [2021-03-25 07:57:17,230 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 649 predicate places. [2021-03-25 07:57:17,230 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:17,230 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 680 places, 876 transitions, 24760 flow [2021-03-25 07:57:17,230 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 680 places, 876 transitions, 24760 flow [2021-03-25 07:57:17,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 680 places, 876 transitions, 24760 flow [2021-03-25 07:57:17,551 INFO L129 PetriNetUnfolder]: 461/1090 cut-off events. [2021-03-25 07:57:17,551 INFO L130 PetriNetUnfolder]: For 83200/83223 co-relation queries the response was YES. [2021-03-25 07:57:17,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14941 conditions, 1090 events. 461/1090 cut-off events. For 83200/83223 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 8213 event pairs, 3 based on Foata normal form. 10/1099 useless extension candidates. Maximal degree in co-relation 14596. Up to 312 conditions per place. [2021-03-25 07:57:17,592 INFO L142 LiptonReduction]: Number of co-enabled transitions 1274 [2021-03-25 07:57:17,682 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:17,682 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:17,682 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 452 [2021-03-25 07:57:17,682 INFO L480 AbstractCegarLoop]: Abstraction has has 680 places, 876 transitions, 24760 flow [2021-03-25 07:57:17,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:17,683 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:17,683 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:17,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-03-25 07:57:17,683 INFO L428 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:17,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:17,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1827037888, now seen corresponding path program 14 times [2021-03-25 07:57:17,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:17,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8035548] [2021-03-25 07:57:17,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:17,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:17,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:17,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:17,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:17,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:17,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:17,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:17,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:17,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:17,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:17,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:17,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:17,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:17,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:17,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:17,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:17,737 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:17,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:17,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:17,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8035548] [2021-03-25 07:57:17,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:17,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:57:17,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544395363] [2021-03-25 07:57:17,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:57:17,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:17,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:57:17,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:57:17,740 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:17,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 680 places, 876 transitions, 24760 flow. Second operand has 8 states, 8 states have (on average 26.75) internal successors, (214), 8 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:17,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:17,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:17,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:18,555 INFO L129 PetriNetUnfolder]: 594/1317 cut-off events. [2021-03-25 07:57:18,556 INFO L130 PetriNetUnfolder]: For 106508/106508 co-relation queries the response was YES. [2021-03-25 07:57:18,580 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19294 conditions, 1317 events. 594/1317 cut-off events. For 106508/106508 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 9615 event pairs, 4 based on Foata normal form. 1/1318 useless extension candidates. Maximal degree in co-relation 18831. Up to 1099 conditions per place. [2021-03-25 07:57:18,587 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 843 selfloop transitions, 39 changer transitions 2/888 dead transitions. [2021-03-25 07:57:18,587 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 888 transitions, 26872 flow [2021-03-25 07:57:18,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:57:18,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:57:18,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 248 transitions. [2021-03-25 07:57:18,588 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2021-03-25 07:57:18,588 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 248 transitions. [2021-03-25 07:57:18,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 248 transitions. [2021-03-25 07:57:18,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:18,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 248 transitions. [2021-03-25 07:57:18,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 31.0) internal successors, (248), 8 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:18,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:18,589 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:18,589 INFO L185 Difference]: Start difference. First operand has 680 places, 876 transitions, 24760 flow. Second operand 8 states and 248 transitions. [2021-03-25 07:57:18,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 687 places, 888 transitions, 26872 flow [2021-03-25 07:57:19,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 888 transitions, 26473 flow, removed 38 selfloop flow, removed 28 redundant places. [2021-03-25 07:57:19,788 INFO L241 Difference]: Finished difference. Result has 662 places, 877 transitions, 24580 flow [2021-03-25 07:57:19,789 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=24375, PETRI_DIFFERENCE_MINUEND_PLACES=652, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=876, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=24580, PETRI_PLACES=662, PETRI_TRANSITIONS=877} [2021-03-25 07:57:19,789 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 631 predicate places. [2021-03-25 07:57:19,789 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:19,789 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 662 places, 877 transitions, 24580 flow [2021-03-25 07:57:19,789 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 662 places, 877 transitions, 24580 flow [2021-03-25 07:57:19,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 662 places, 877 transitions, 24580 flow [2021-03-25 07:57:20,080 INFO L129 PetriNetUnfolder]: 461/1087 cut-off events. [2021-03-25 07:57:20,080 INFO L130 PetriNetUnfolder]: For 83318/83333 co-relation queries the response was YES. [2021-03-25 07:57:20,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14777 conditions, 1087 events. 461/1087 cut-off events. For 83318/83333 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 8249 event pairs, 1 based on Foata normal form. 8/1094 useless extension candidates. Maximal degree in co-relation 14444. Up to 312 conditions per place. [2021-03-25 07:57:20,117 INFO L142 LiptonReduction]: Number of co-enabled transitions 1274 [2021-03-25 07:57:20,206 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:20,206 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:20,206 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 417 [2021-03-25 07:57:20,207 INFO L480 AbstractCegarLoop]: Abstraction has has 662 places, 877 transitions, 24580 flow [2021-03-25 07:57:20,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 26.75) internal successors, (214), 8 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:20,207 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:20,207 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:20,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-03-25 07:57:20,207 INFO L428 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:20,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:20,207 INFO L82 PathProgramCache]: Analyzing trace with hash 530460660, now seen corresponding path program 15 times [2021-03-25 07:57:20,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:20,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275323532] [2021-03-25 07:57:20,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:20,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:20,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:20,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:20,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:20,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:20,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:20,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:20,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:20,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:20,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:20,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:20,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:20,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:20,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:20,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:20,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:20,259 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:20,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:20,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:20,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275323532] [2021-03-25 07:57:20,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:20,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:57:20,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938035029] [2021-03-25 07:57:20,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:57:20,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:20,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:57:20,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:57:20,262 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:20,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 877 transitions, 24580 flow. Second operand has 8 states, 8 states have (on average 26.75) internal successors, (214), 8 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:20,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:20,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:20,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:21,013 INFO L129 PetriNetUnfolder]: 593/1315 cut-off events. [2021-03-25 07:57:21,014 INFO L130 PetriNetUnfolder]: For 100433/100433 co-relation queries the response was YES. [2021-03-25 07:57:21,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19004 conditions, 1315 events. 593/1315 cut-off events. For 100433/100433 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 9627 event pairs, 5 based on Foata normal form. 1/1316 useless extension candidates. Maximal degree in co-relation 18554. Up to 1099 conditions per place. [2021-03-25 07:57:21,044 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 844 selfloop transitions, 34 changer transitions 5/887 dead transitions. [2021-03-25 07:57:21,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 669 places, 887 transitions, 26494 flow [2021-03-25 07:57:21,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:57:21,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:57:21,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 248 transitions. [2021-03-25 07:57:21,045 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2021-03-25 07:57:21,045 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 248 transitions. [2021-03-25 07:57:21,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 248 transitions. [2021-03-25 07:57:21,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:21,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 248 transitions. [2021-03-25 07:57:21,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 31.0) internal successors, (248), 8 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:21,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:21,046 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:21,046 INFO L185 Difference]: Start difference. First operand has 662 places, 877 transitions, 24580 flow. Second operand 8 states and 248 transitions. [2021-03-25 07:57:21,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 669 places, 887 transitions, 26494 flow [2021-03-25 07:57:22,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 887 transitions, 26395 flow, removed 28 selfloop flow, removed 3 redundant places. [2021-03-25 07:57:22,117 INFO L241 Difference]: Finished difference. Result has 668 places, 873 transitions, 24452 flow [2021-03-25 07:57:22,118 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=24481, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=877, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=843, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=24452, PETRI_PLACES=668, PETRI_TRANSITIONS=873} [2021-03-25 07:57:22,118 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 637 predicate places. [2021-03-25 07:57:22,118 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:22,118 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 668 places, 873 transitions, 24452 flow [2021-03-25 07:57:22,118 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 668 places, 873 transitions, 24452 flow [2021-03-25 07:57:22,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 668 places, 873 transitions, 24452 flow [2021-03-25 07:57:22,405 INFO L129 PetriNetUnfolder]: 459/1082 cut-off events. [2021-03-25 07:57:22,405 INFO L130 PetriNetUnfolder]: For 84956/84994 co-relation queries the response was YES. [2021-03-25 07:57:22,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14700 conditions, 1082 events. 459/1082 cut-off events. For 84956/84994 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 8160 event pairs, 1 based on Foata normal form. 10/1091 useless extension candidates. Maximal degree in co-relation 14366. Up to 310 conditions per place. [2021-03-25 07:57:22,441 INFO L142 LiptonReduction]: Number of co-enabled transitions 1258 [2021-03-25 07:57:22,528 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:22,528 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:22,528 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 410 [2021-03-25 07:57:22,528 INFO L480 AbstractCegarLoop]: Abstraction has has 668 places, 873 transitions, 24452 flow [2021-03-25 07:57:22,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 26.75) internal successors, (214), 8 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:22,528 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:22,528 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:22,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-03-25 07:57:22,528 INFO L428 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:22,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:22,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1591558072, now seen corresponding path program 16 times [2021-03-25 07:57:22,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:22,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546796079] [2021-03-25 07:57:22,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:22,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:22,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:22,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:22,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:22,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:22,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:22,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:22,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:22,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:22,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:22,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:22,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:22,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:22,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:22,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:22,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:22,597 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:22,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:22,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:22,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546796079] [2021-03-25 07:57:22,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:22,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:22,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080200012] [2021-03-25 07:57:22,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:22,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:22,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:22,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:22,600 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:22,600 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 668 places, 873 transitions, 24452 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:22,600 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:22,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:22,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:23,434 INFO L129 PetriNetUnfolder]: 594/1325 cut-off events. [2021-03-25 07:57:23,434 INFO L130 PetriNetUnfolder]: For 109754/109754 co-relation queries the response was YES. [2021-03-25 07:57:23,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19462 conditions, 1325 events. 594/1325 cut-off events. For 109754/109754 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 9740 event pairs, 8 based on Foata normal form. 1/1326 useless extension candidates. Maximal degree in co-relation 19010. Up to 1013 conditions per place. [2021-03-25 07:57:23,467 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 772 selfloop transitions, 94 changer transitions 25/895 dead transitions. [2021-03-25 07:57:23,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 677 places, 895 transitions, 27486 flow [2021-03-25 07:57:23,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:23,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:23,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 07:57:23,468 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43857142857142856 [2021-03-25 07:57:23,468 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 07:57:23,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 07:57:23,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:23,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 07:57:23,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:23,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:23,469 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:23,469 INFO L185 Difference]: Start difference. First operand has 668 places, 873 transitions, 24452 flow. Second operand 10 states and 307 transitions. [2021-03-25 07:57:23,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 677 places, 895 transitions, 27486 flow [2021-03-25 07:57:24,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 667 places, 895 transitions, 27396 flow, removed 4 selfloop flow, removed 10 redundant places. [2021-03-25 07:57:24,573 INFO L241 Difference]: Finished difference. Result has 674 places, 860 transitions, 24608 flow [2021-03-25 07:57:24,573 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=24366, PETRI_DIFFERENCE_MINUEND_PLACES=658, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=873, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=780, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=24608, PETRI_PLACES=674, PETRI_TRANSITIONS=860} [2021-03-25 07:57:24,573 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 643 predicate places. [2021-03-25 07:57:24,573 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:24,573 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 674 places, 860 transitions, 24608 flow [2021-03-25 07:57:24,573 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 674 places, 860 transitions, 24608 flow [2021-03-25 07:57:24,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 674 places, 860 transitions, 24608 flow [2021-03-25 07:57:24,850 INFO L129 PetriNetUnfolder]: 451/1040 cut-off events. [2021-03-25 07:57:24,850 INFO L130 PetriNetUnfolder]: For 82440/82455 co-relation queries the response was YES. [2021-03-25 07:57:24,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14828 conditions, 1040 events. 451/1040 cut-off events. For 82440/82455 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 7633 event pairs, 5 based on Foata normal form. 8/1047 useless extension candidates. Maximal degree in co-relation 14490. Up to 303 conditions per place. [2021-03-25 07:57:24,887 INFO L142 LiptonReduction]: Number of co-enabled transitions 1192 [2021-03-25 07:57:24,986 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:24,986 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:24,986 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 413 [2021-03-25 07:57:24,986 INFO L480 AbstractCegarLoop]: Abstraction has has 674 places, 860 transitions, 24608 flow [2021-03-25 07:57:24,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:24,986 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:24,986 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:24,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-03-25 07:57:24,987 INFO L428 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:24,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:24,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1608460232, now seen corresponding path program 17 times [2021-03-25 07:57:24,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:24,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527696027] [2021-03-25 07:57:24,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:24,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:24,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:25,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:25,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:25,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:25,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:25,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:25,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:25,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:25,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:25,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:25,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:25,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:25,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:25,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:25,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:25,057 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:25,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:25,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:25,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527696027] [2021-03-25 07:57:25,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:25,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:57:25,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728804820] [2021-03-25 07:57:25,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:57:25,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:25,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:57:25,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:57:25,061 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:25,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 674 places, 860 transitions, 24608 flow. Second operand has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:25,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:25,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:25,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:25,950 INFO L129 PetriNetUnfolder]: 576/1271 cut-off events. [2021-03-25 07:57:25,951 INFO L130 PetriNetUnfolder]: For 111011/111011 co-relation queries the response was YES. [2021-03-25 07:57:25,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19345 conditions, 1271 events. 576/1271 cut-off events. For 111011/111011 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 9193 event pairs, 3 based on Foata normal form. 1/1272 useless extension candidates. Maximal degree in co-relation 18889. Up to 1052 conditions per place. [2021-03-25 07:57:25,976 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 800 selfloop transitions, 64 changer transitions 10/878 dead transitions. [2021-03-25 07:57:25,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 878 transitions, 27324 flow [2021-03-25 07:57:25,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:57:25,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:57:25,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 277 transitions. [2021-03-25 07:57:25,977 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4396825396825397 [2021-03-25 07:57:25,977 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 277 transitions. [2021-03-25 07:57:25,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 277 transitions. [2021-03-25 07:57:25,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:25,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 277 transitions. [2021-03-25 07:57:25,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 9 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:25,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:25,978 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:25,978 INFO L185 Difference]: Start difference. First operand has 674 places, 860 transitions, 24608 flow. Second operand 9 states and 277 transitions. [2021-03-25 07:57:25,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 682 places, 878 transitions, 27324 flow [2021-03-25 07:57:27,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 667 places, 878 transitions, 26846 flow, removed 127 selfloop flow, removed 15 redundant places. [2021-03-25 07:57:27,117 INFO L241 Difference]: Finished difference. Result has 672 places, 859 transitions, 24694 flow [2021-03-25 07:57:27,117 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=24142, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=860, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=798, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=24694, PETRI_PLACES=672, PETRI_TRANSITIONS=859} [2021-03-25 07:57:27,117 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 641 predicate places. [2021-03-25 07:57:27,117 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:27,117 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 672 places, 859 transitions, 24694 flow [2021-03-25 07:57:27,117 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 672 places, 859 transitions, 24694 flow [2021-03-25 07:57:27,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 672 places, 859 transitions, 24694 flow [2021-03-25 07:57:27,405 INFO L129 PetriNetUnfolder]: 450/1058 cut-off events. [2021-03-25 07:57:27,405 INFO L130 PetriNetUnfolder]: For 90761/90761 co-relation queries the response was YES. [2021-03-25 07:57:27,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14912 conditions, 1058 events. 450/1058 cut-off events. For 90761/90761 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 7904 event pairs, 2 based on Foata normal form. 0/1057 useless extension candidates. Maximal degree in co-relation 14576. Up to 301 conditions per place. [2021-03-25 07:57:27,443 INFO L142 LiptonReduction]: Number of co-enabled transitions 1186 [2021-03-25 07:57:27,530 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:27,530 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:27,530 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 413 [2021-03-25 07:57:27,530 INFO L480 AbstractCegarLoop]: Abstraction has has 672 places, 859 transitions, 24694 flow [2021-03-25 07:57:27,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:27,530 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:27,531 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:27,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-03-25 07:57:27,531 INFO L428 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:27,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:27,531 INFO L82 PathProgramCache]: Analyzing trace with hash 524443046, now seen corresponding path program 18 times [2021-03-25 07:57:27,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:27,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430473474] [2021-03-25 07:57:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:27,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:27,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:27,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:27,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:27,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:27,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:27,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:27,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:27,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:27,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:27,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:27,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:27,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:27,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:27,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:27,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:27,594 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:27,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:27,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:27,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430473474] [2021-03-25 07:57:27,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:27,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:27,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110779107] [2021-03-25 07:57:27,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:27,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:27,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:27,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:27,597 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:27,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 859 transitions, 24694 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:27,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:27,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:27,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:28,431 INFO L129 PetriNetUnfolder]: 573/1271 cut-off events. [2021-03-25 07:57:28,431 INFO L130 PetriNetUnfolder]: For 114027/114027 co-relation queries the response was YES. [2021-03-25 07:57:28,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19539 conditions, 1271 events. 573/1271 cut-off events. For 114027/114027 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 9231 event pairs, 11 based on Foata normal form. 1/1272 useless extension candidates. Maximal degree in co-relation 19086. Up to 1001 conditions per place. [2021-03-25 07:57:28,460 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 782 selfloop transitions, 70 changer transitions 25/881 dead transitions. [2021-03-25 07:57:28,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 881 transitions, 27786 flow [2021-03-25 07:57:28,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:28,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:28,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 07:57:28,461 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43857142857142856 [2021-03-25 07:57:28,461 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 07:57:28,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 07:57:28,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:28,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 07:57:28,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:28,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:28,462 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:28,462 INFO L185 Difference]: Start difference. First operand has 672 places, 859 transitions, 24694 flow. Second operand 10 states and 307 transitions. [2021-03-25 07:57:28,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 681 places, 881 transitions, 27786 flow [2021-03-25 07:57:29,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 671 places, 881 transitions, 27281 flow, removed 205 selfloop flow, removed 10 redundant places. [2021-03-25 07:57:29,610 INFO L241 Difference]: Finished difference. Result has 678 places, 846 transitions, 24433 flow [2021-03-25 07:57:29,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=24203, PETRI_DIFFERENCE_MINUEND_PLACES=662, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=859, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=790, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=24433, PETRI_PLACES=678, PETRI_TRANSITIONS=846} [2021-03-25 07:57:29,611 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 647 predicate places. [2021-03-25 07:57:29,611 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:29,611 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 678 places, 846 transitions, 24433 flow [2021-03-25 07:57:29,611 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 678 places, 846 transitions, 24433 flow [2021-03-25 07:57:29,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 678 places, 846 transitions, 24433 flow [2021-03-25 07:57:29,891 INFO L129 PetriNetUnfolder]: 442/1036 cut-off events. [2021-03-25 07:57:29,892 INFO L130 PetriNetUnfolder]: For 90918/90958 co-relation queries the response was YES. [2021-03-25 07:57:29,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14832 conditions, 1036 events. 442/1036 cut-off events. For 90918/90958 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 7718 event pairs, 0 based on Foata normal form. 10/1045 useless extension candidates. Maximal degree in co-relation 14491. Up to 298 conditions per place. [2021-03-25 07:57:29,925 INFO L142 LiptonReduction]: Number of co-enabled transitions 1130 [2021-03-25 07:57:30,007 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:30,008 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:30,008 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 397 [2021-03-25 07:57:30,008 INFO L480 AbstractCegarLoop]: Abstraction has has 678 places, 846 transitions, 24433 flow [2021-03-25 07:57:30,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:30,008 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:30,008 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:30,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-03-25 07:57:30,008 INFO L428 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:30,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:30,008 INFO L82 PathProgramCache]: Analyzing trace with hash 469301730, now seen corresponding path program 19 times [2021-03-25 07:57:30,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:30,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406267561] [2021-03-25 07:57:30,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:30,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:30,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:30,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:30,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:30,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:30,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:30,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:30,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:30,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:30,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:30,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:30,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:30,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:30,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:30,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:30,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:30,071 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:30,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:30,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:30,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406267561] [2021-03-25 07:57:30,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:30,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:30,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998344100] [2021-03-25 07:57:30,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:30,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:30,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:30,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:30,074 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:30,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 678 places, 846 transitions, 24433 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:30,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:30,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:30,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:30,886 INFO L129 PetriNetUnfolder]: 558/1242 cut-off events. [2021-03-25 07:57:30,886 INFO L130 PetriNetUnfolder]: For 116137/116137 co-relation queries the response was YES. [2021-03-25 07:57:30,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19492 conditions, 1242 events. 558/1242 cut-off events. For 116137/116137 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 8939 event pairs, 4 based on Foata normal form. 1/1243 useless extension candidates. Maximal degree in co-relation 19035. Up to 1027 conditions per place. [2021-03-25 07:57:30,915 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 790 selfloop transitions, 70 changer transitions 5/869 dead transitions. [2021-03-25 07:57:30,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 869 transitions, 27727 flow [2021-03-25 07:57:30,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:30,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:30,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 07:57:30,916 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43714285714285717 [2021-03-25 07:57:30,916 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 07:57:30,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 07:57:30,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:30,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 07:57:30,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:30,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:30,917 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:30,917 INFO L185 Difference]: Start difference. First operand has 678 places, 846 transitions, 24433 flow. Second operand 10 states and 306 transitions. [2021-03-25 07:57:30,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 687 places, 869 transitions, 27727 flow [2021-03-25 07:57:32,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 669 places, 869 transitions, 27294 flow, removed 140 selfloop flow, removed 18 redundant places. [2021-03-25 07:57:32,065 INFO L241 Difference]: Finished difference. Result has 672 places, 855 transitions, 25166 flow [2021-03-25 07:57:32,066 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=24012, PETRI_DIFFERENCE_MINUEND_PLACES=660, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=846, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=781, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=25166, PETRI_PLACES=672, PETRI_TRANSITIONS=855} [2021-03-25 07:57:32,066 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 641 predicate places. [2021-03-25 07:57:32,066 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:32,066 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 672 places, 855 transitions, 25166 flow [2021-03-25 07:57:32,066 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 672 places, 855 transitions, 25166 flow [2021-03-25 07:57:32,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 672 places, 855 transitions, 25166 flow [2021-03-25 07:57:32,380 INFO L129 PetriNetUnfolder]: 446/1037 cut-off events. [2021-03-25 07:57:32,380 INFO L130 PetriNetUnfolder]: For 93802/93829 co-relation queries the response was YES. [2021-03-25 07:57:32,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15217 conditions, 1037 events. 446/1037 cut-off events. For 93802/93829 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 7685 event pairs, 0 based on Foata normal form. 8/1044 useless extension candidates. Maximal degree in co-relation 14882. Up to 302 conditions per place. [2021-03-25 07:57:32,417 INFO L142 LiptonReduction]: Number of co-enabled transitions 1134 [2021-03-25 07:57:32,504 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:32,504 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:32,504 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 438 [2021-03-25 07:57:32,504 INFO L480 AbstractCegarLoop]: Abstraction has has 672 places, 855 transitions, 25166 flow [2021-03-25 07:57:32,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:32,504 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:32,504 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:32,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-03-25 07:57:32,505 INFO L428 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:32,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:32,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1255583082, now seen corresponding path program 20 times [2021-03-25 07:57:32,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:32,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536419483] [2021-03-25 07:57:32,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:32,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:32,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:32,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:32,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:32,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:32,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:32,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:32,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:32,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:32,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:32,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:32,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:32,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:32,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:32,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:32,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:32,559 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:32,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:32,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:32,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536419483] [2021-03-25 07:57:32,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:32,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:57:32,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373838218] [2021-03-25 07:57:32,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:57:32,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:32,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:57:32,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:57:32,562 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:32,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 855 transitions, 25166 flow. Second operand has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:32,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:32,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:32,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:33,384 INFO L129 PetriNetUnfolder]: 562/1244 cut-off events. [2021-03-25 07:57:33,384 INFO L130 PetriNetUnfolder]: For 121071/121071 co-relation queries the response was YES. [2021-03-25 07:57:33,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19924 conditions, 1244 events. 562/1244 cut-off events. For 121071/121071 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 8986 event pairs, 7 based on Foata normal form. 1/1245 useless extension candidates. Maximal degree in co-relation 19476. Up to 1037 conditions per place. [2021-03-25 07:57:33,414 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 801 selfloop transitions, 70 changer transitions 4/879 dead transitions. [2021-03-25 07:57:33,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 680 places, 879 transitions, 28595 flow [2021-03-25 07:57:33,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:57:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:57:33,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 277 transitions. [2021-03-25 07:57:33,415 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4396825396825397 [2021-03-25 07:57:33,415 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 277 transitions. [2021-03-25 07:57:33,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 277 transitions. [2021-03-25 07:57:33,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:33,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 277 transitions. [2021-03-25 07:57:33,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 9 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:33,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:33,416 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:33,416 INFO L185 Difference]: Start difference. First operand has 672 places, 855 transitions, 25166 flow. Second operand 9 states and 277 transitions. [2021-03-25 07:57:33,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 680 places, 879 transitions, 28595 flow [2021-03-25 07:57:34,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 677 places, 879 transitions, 27381 flow, removed 590 selfloop flow, removed 3 redundant places. [2021-03-25 07:57:34,535 INFO L241 Difference]: Finished difference. Result has 682 places, 866 transitions, 25387 flow [2021-03-25 07:57:34,536 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=24354, PETRI_DIFFERENCE_MINUEND_PLACES=669, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=855, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=788, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=25387, PETRI_PLACES=682, PETRI_TRANSITIONS=866} [2021-03-25 07:57:34,536 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 651 predicate places. [2021-03-25 07:57:34,536 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:34,536 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 682 places, 866 transitions, 25387 flow [2021-03-25 07:57:34,536 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 682 places, 866 transitions, 25387 flow [2021-03-25 07:57:34,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 682 places, 866 transitions, 25387 flow [2021-03-25 07:57:34,830 INFO L129 PetriNetUnfolder]: 450/1046 cut-off events. [2021-03-25 07:57:34,830 INFO L130 PetriNetUnfolder]: For 97551/97578 co-relation queries the response was YES. [2021-03-25 07:57:34,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15387 conditions, 1046 events. 450/1046 cut-off events. For 97551/97578 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 7809 event pairs, 0 based on Foata normal form. 8/1053 useless extension candidates. Maximal degree in co-relation 15047. Up to 302 conditions per place. [2021-03-25 07:57:34,868 INFO L142 LiptonReduction]: Number of co-enabled transitions 1134 [2021-03-25 07:57:34,959 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:34,959 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:34,960 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 424 [2021-03-25 07:57:34,960 INFO L480 AbstractCegarLoop]: Abstraction has has 682 places, 866 transitions, 25387 flow [2021-03-25 07:57:34,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:34,960 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:34,960 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:34,960 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-03-25 07:57:34,960 INFO L428 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:34,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:34,960 INFO L82 PathProgramCache]: Analyzing trace with hash 19382886, now seen corresponding path program 21 times [2021-03-25 07:57:34,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:34,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678050196] [2021-03-25 07:57:34,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:34,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:34,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:34,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:34,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:34,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:34,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:34,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:34,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:34,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:34,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:35,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:35,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:35,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:35,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:35,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:35,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:35,029 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:35,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:35,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678050196] [2021-03-25 07:57:35,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:35,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:35,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931151167] [2021-03-25 07:57:35,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:35,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:35,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:35,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:35,033 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:35,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 866 transitions, 25387 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:35,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:35,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:35,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:35,884 INFO L129 PetriNetUnfolder]: 564/1257 cut-off events. [2021-03-25 07:57:35,884 INFO L130 PetriNetUnfolder]: For 119366/119366 co-relation queries the response was YES. [2021-03-25 07:57:35,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20002 conditions, 1257 events. 564/1257 cut-off events. For 119366/119366 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 9155 event pairs, 12 based on Foata normal form. 1/1258 useless extension candidates. Maximal degree in co-relation 19549. Up to 1035 conditions per place. [2021-03-25 07:57:35,914 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 817 selfloop transitions, 51 changer transitions 16/888 dead transitions. [2021-03-25 07:57:35,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 691 places, 888 transitions, 28579 flow [2021-03-25 07:57:35,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:35,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:35,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 07:57:35,915 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43857142857142856 [2021-03-25 07:57:35,915 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 07:57:35,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 07:57:35,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:35,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 07:57:35,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:35,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:35,916 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:35,916 INFO L185 Difference]: Start difference. First operand has 682 places, 866 transitions, 25387 flow. Second operand 10 states and 307 transitions. [2021-03-25 07:57:35,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 691 places, 888 transitions, 28579 flow [2021-03-25 07:57:37,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 689 places, 888 transitions, 28089 flow, removed 234 selfloop flow, removed 2 redundant places. [2021-03-25 07:57:37,218 INFO L241 Difference]: Finished difference. Result has 695 places, 862 transitions, 25462 flow [2021-03-25 07:57:37,219 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=24897, PETRI_DIFFERENCE_MINUEND_PLACES=680, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=866, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=817, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=25462, PETRI_PLACES=695, PETRI_TRANSITIONS=862} [2021-03-25 07:57:37,219 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 664 predicate places. [2021-03-25 07:57:37,219 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:37,219 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 695 places, 862 transitions, 25462 flow [2021-03-25 07:57:37,219 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 695 places, 862 transitions, 25462 flow [2021-03-25 07:57:37,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 695 places, 862 transitions, 25462 flow [2021-03-25 07:57:37,525 INFO L129 PetriNetUnfolder]: 447/1040 cut-off events. [2021-03-25 07:57:37,526 INFO L130 PetriNetUnfolder]: For 100165/100188 co-relation queries the response was YES. [2021-03-25 07:57:37,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15487 conditions, 1040 events. 447/1040 cut-off events. For 100165/100188 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 7764 event pairs, 0 based on Foata normal form. 10/1050 useless extension candidates. Maximal degree in co-relation 15141. Up to 301 conditions per place. [2021-03-25 07:57:37,563 INFO L142 LiptonReduction]: Number of co-enabled transitions 1094 [2021-03-25 07:57:37,641 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:37,641 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:37,641 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 422 [2021-03-25 07:57:37,642 INFO L480 AbstractCegarLoop]: Abstraction has has 695 places, 862 transitions, 25462 flow [2021-03-25 07:57:37,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:37,642 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:37,642 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:37,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-03-25 07:57:37,642 INFO L428 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:37,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:37,642 INFO L82 PathProgramCache]: Analyzing trace with hash 522967614, now seen corresponding path program 22 times [2021-03-25 07:57:37,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:37,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274906982] [2021-03-25 07:57:37,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:37,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:37,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:37,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:37,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:37,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:37,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:37,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:37,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:37,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:37,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:37,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:37,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:37,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:37,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:37,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:37,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:37,697 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:37,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:37,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274906982] [2021-03-25 07:57:37,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:37,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:57:37,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20991488] [2021-03-25 07:57:37,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:57:37,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:37,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:57:37,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:57:37,700 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:37,700 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 695 places, 862 transitions, 25462 flow. Second operand has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:37,700 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:37,700 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:37,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:38,499 INFO L129 PetriNetUnfolder]: 557/1236 cut-off events. [2021-03-25 07:57:38,499 INFO L130 PetriNetUnfolder]: For 119952/119952 co-relation queries the response was YES. [2021-03-25 07:57:38,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20082 conditions, 1236 events. 557/1236 cut-off events. For 119952/119952 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 8913 event pairs, 7 based on Foata normal form. 1/1237 useless extension candidates. Maximal degree in co-relation 19622. Up to 1044 conditions per place. [2021-03-25 07:57:38,529 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 831 selfloop transitions, 45 changer transitions 4/884 dead transitions. [2021-03-25 07:57:38,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 703 places, 884 transitions, 28696 flow [2021-03-25 07:57:38,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:57:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:57:38,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 278 transitions. [2021-03-25 07:57:38,530 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44126984126984126 [2021-03-25 07:57:38,530 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 278 transitions. [2021-03-25 07:57:38,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 278 transitions. [2021-03-25 07:57:38,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:38,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 278 transitions. [2021-03-25 07:57:38,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:38,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:38,531 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:38,531 INFO L185 Difference]: Start difference. First operand has 695 places, 862 transitions, 25462 flow. Second operand 9 states and 278 transitions. [2021-03-25 07:57:38,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 703 places, 884 transitions, 28696 flow [2021-03-25 07:57:39,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 691 places, 884 transitions, 27877 flow, removed 368 selfloop flow, removed 12 redundant places. [2021-03-25 07:57:39,879 INFO L241 Difference]: Finished difference. Result has 693 places, 870 transitions, 25710 flow [2021-03-25 07:57:39,880 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=24655, PETRI_DIFFERENCE_MINUEND_PLACES=683, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=862, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=821, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=25710, PETRI_PLACES=693, PETRI_TRANSITIONS=870} [2021-03-25 07:57:39,880 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 662 predicate places. [2021-03-25 07:57:39,880 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:39,880 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 693 places, 870 transitions, 25710 flow [2021-03-25 07:57:39,880 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 693 places, 870 transitions, 25710 flow [2021-03-25 07:57:39,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 693 places, 870 transitions, 25710 flow [2021-03-25 07:57:40,201 INFO L129 PetriNetUnfolder]: 451/1047 cut-off events. [2021-03-25 07:57:40,202 INFO L130 PetriNetUnfolder]: For 106122/106143 co-relation queries the response was YES. [2021-03-25 07:57:40,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15626 conditions, 1047 events. 451/1047 cut-off events. For 106122/106143 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 7830 event pairs, 0 based on Foata normal form. 10/1056 useless extension candidates. Maximal degree in co-relation 15282. Up to 304 conditions per place. [2021-03-25 07:57:40,240 INFO L142 LiptonReduction]: Number of co-enabled transitions 1102 [2021-03-25 07:57:40,328 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:40,328 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:40,328 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 448 [2021-03-25 07:57:40,328 INFO L480 AbstractCegarLoop]: Abstraction has has 693 places, 870 transitions, 25710 flow [2021-03-25 07:57:40,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:40,329 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:40,329 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:40,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-03-25 07:57:40,329 INFO L428 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:40,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:40,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1095897852, now seen corresponding path program 23 times [2021-03-25 07:57:40,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:40,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669411425] [2021-03-25 07:57:40,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:40,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:40,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:40,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:40,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:40,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:40,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:40,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:40,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:40,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:40,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:40,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:40,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:40,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:40,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:40,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:40,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:40,393 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:40,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:40,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:40,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669411425] [2021-03-25 07:57:40,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:40,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:40,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295005198] [2021-03-25 07:57:40,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:40,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:40,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:40,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:40,396 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:40,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 693 places, 870 transitions, 25710 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:40,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:40,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:40,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:41,232 INFO L129 PetriNetUnfolder]: 562/1255 cut-off events. [2021-03-25 07:57:41,232 INFO L130 PetriNetUnfolder]: For 125437/125437 co-relation queries the response was YES. [2021-03-25 07:57:41,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20429 conditions, 1255 events. 562/1255 cut-off events. For 125437/125437 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 9124 event pairs, 7 based on Foata normal form. 1/1256 useless extension candidates. Maximal degree in co-relation 19972. Up to 1070 conditions per place. [2021-03-25 07:57:41,263 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 846 selfloop transitions, 40 changer transitions 4/894 dead transitions. [2021-03-25 07:57:41,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 702 places, 894 transitions, 29337 flow [2021-03-25 07:57:41,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:41,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:41,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 07:57:41,264 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43714285714285717 [2021-03-25 07:57:41,264 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 07:57:41,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 07:57:41,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:41,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 07:57:41,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:41,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:41,265 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:41,265 INFO L185 Difference]: Start difference. First operand has 693 places, 870 transitions, 25710 flow. Second operand 10 states and 306 transitions. [2021-03-25 07:57:41,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 702 places, 894 transitions, 29337 flow [2021-03-25 07:57:42,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 698 places, 894 transitions, 28087 flow, removed 612 selfloop flow, removed 4 redundant places. [2021-03-25 07:57:42,590 INFO L241 Difference]: Finished difference. Result has 703 places, 881 transitions, 25924 flow [2021-03-25 07:57:42,590 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=24896, PETRI_DIFFERENCE_MINUEND_PLACES=689, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=870, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=833, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=25924, PETRI_PLACES=703, PETRI_TRANSITIONS=881} [2021-03-25 07:57:42,591 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 672 predicate places. [2021-03-25 07:57:42,591 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:42,591 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 703 places, 881 transitions, 25924 flow [2021-03-25 07:57:42,591 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 703 places, 881 transitions, 25924 flow [2021-03-25 07:57:42,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 703 places, 881 transitions, 25924 flow [2021-03-25 07:57:42,938 INFO L129 PetriNetUnfolder]: 456/1059 cut-off events. [2021-03-25 07:57:42,938 INFO L130 PetriNetUnfolder]: For 104389/104426 co-relation queries the response was YES. [2021-03-25 07:57:42,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15786 conditions, 1059 events. 456/1059 cut-off events. For 104389/104426 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 7913 event pairs, 0 based on Foata normal form. 10/1068 useless extension candidates. Maximal degree in co-relation 15437. Up to 305 conditions per place. [2021-03-25 07:57:42,969 INFO L142 LiptonReduction]: Number of co-enabled transitions 1116 [2021-03-25 07:57:43,054 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:43,054 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:43,054 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 463 [2021-03-25 07:57:43,055 INFO L480 AbstractCegarLoop]: Abstraction has has 703 places, 881 transitions, 25924 flow [2021-03-25 07:57:43,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:43,055 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:43,055 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:43,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-03-25 07:57:43,055 INFO L428 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:43,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:43,055 INFO L82 PathProgramCache]: Analyzing trace with hash -2115052258, now seen corresponding path program 24 times [2021-03-25 07:57:43,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:43,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757580067] [2021-03-25 07:57:43,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:43,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:43,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:43,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:43,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:43,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:43,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:43,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:43,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:43,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:43,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:43,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:43,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:43,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:43,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:43,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:43,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:43,123 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:43,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:43,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:43,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757580067] [2021-03-25 07:57:43,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:43,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:43,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091979200] [2021-03-25 07:57:43,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:43,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:43,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:43,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:43,127 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:43,127 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 881 transitions, 25924 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:43,127 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:43,127 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:43,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:44,091 INFO L129 PetriNetUnfolder]: 564/1258 cut-off events. [2021-03-25 07:57:44,092 INFO L130 PetriNetUnfolder]: For 120649/120649 co-relation queries the response was YES. [2021-03-25 07:57:44,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20228 conditions, 1258 events. 564/1258 cut-off events. For 120649/120649 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 9170 event pairs, 8 based on Foata normal form. 1/1259 useless extension candidates. Maximal degree in co-relation 19766. Up to 1009 conditions per place. [2021-03-25 07:57:44,124 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 756 selfloop transitions, 133 changer transitions 6/899 dead transitions. [2021-03-25 07:57:44,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 712 places, 899 transitions, 28826 flow [2021-03-25 07:57:44,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:44,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:44,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 07:57:44,125 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43714285714285717 [2021-03-25 07:57:44,125 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 07:57:44,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 07:57:44,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:44,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 07:57:44,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:44,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:44,126 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:44,126 INFO L185 Difference]: Start difference. First operand has 703 places, 881 transitions, 25924 flow. Second operand 10 states and 306 transitions. [2021-03-25 07:57:44,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 712 places, 899 transitions, 28826 flow [2021-03-25 07:57:45,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 708 places, 899 transitions, 28090 flow, removed 358 selfloop flow, removed 4 redundant places. [2021-03-25 07:57:45,514 INFO L241 Difference]: Finished difference. Result has 713 places, 884 transitions, 26137 flow [2021-03-25 07:57:45,514 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=25190, PETRI_DIFFERENCE_MINUEND_PLACES=699, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=881, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=750, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=26137, PETRI_PLACES=713, PETRI_TRANSITIONS=884} [2021-03-25 07:57:45,514 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 682 predicate places. [2021-03-25 07:57:45,515 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:45,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 713 places, 884 transitions, 26137 flow [2021-03-25 07:57:45,515 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 713 places, 884 transitions, 26137 flow [2021-03-25 07:57:45,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 713 places, 884 transitions, 26137 flow [2021-03-25 07:57:45,832 INFO L129 PetriNetUnfolder]: 457/1065 cut-off events. [2021-03-25 07:57:45,832 INFO L130 PetriNetUnfolder]: For 105721/105734 co-relation queries the response was YES. [2021-03-25 07:57:45,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15949 conditions, 1065 events. 457/1065 cut-off events. For 105721/105734 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 8037 event pairs, 0 based on Foata normal form. 8/1072 useless extension candidates. Maximal degree in co-relation 15596. Up to 306 conditions per place. [2021-03-25 07:57:45,869 INFO L142 LiptonReduction]: Number of co-enabled transitions 1116 [2021-03-25 07:57:45,956 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:45,957 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:45,957 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 443 [2021-03-25 07:57:45,957 INFO L480 AbstractCegarLoop]: Abstraction has has 713 places, 884 transitions, 26137 flow [2021-03-25 07:57:45,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:45,957 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:45,957 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:45,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-03-25 07:57:45,957 INFO L428 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:45,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:45,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1966665302, now seen corresponding path program 25 times [2021-03-25 07:57:45,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:45,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815059359] [2021-03-25 07:57:45,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:45,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:45,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:45,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:45,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:45,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:45,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:45,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:45,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:45,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:45,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:45,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:45,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:46,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:46,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:46,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:46,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:46,020 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:46,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:46,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815059359] [2021-03-25 07:57:46,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:46,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:46,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832467895] [2021-03-25 07:57:46,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:46,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:46,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:46,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:46,023 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:46,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 713 places, 884 transitions, 26137 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:46,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:46,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:46,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:46,899 INFO L129 PetriNetUnfolder]: 566/1265 cut-off events. [2021-03-25 07:57:46,900 INFO L130 PetriNetUnfolder]: For 122700/122700 co-relation queries the response was YES. [2021-03-25 07:57:46,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20568 conditions, 1265 events. 566/1265 cut-off events. For 122700/122700 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 9239 event pairs, 8 based on Foata normal form. 1/1266 useless extension candidates. Maximal degree in co-relation 20102. Up to 1050 conditions per place. [2021-03-25 07:57:46,934 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 824 selfloop transitions, 72 changer transitions 5/905 dead transitions. [2021-03-25 07:57:46,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 722 places, 905 transitions, 29353 flow [2021-03-25 07:57:46,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:46,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:46,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 07:57:46,935 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43857142857142856 [2021-03-25 07:57:46,935 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 07:57:46,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 07:57:46,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:46,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 07:57:46,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:46,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:46,936 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:46,936 INFO L185 Difference]: Start difference. First operand has 713 places, 884 transitions, 26137 flow. Second operand 10 states and 307 transitions. [2021-03-25 07:57:46,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 722 places, 905 transitions, 29353 flow [2021-03-25 07:57:48,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 715 places, 905 transitions, 28773 flow, removed 213 selfloop flow, removed 7 redundant places. [2021-03-25 07:57:48,299 INFO L241 Difference]: Finished difference. Result has 720 places, 890 transitions, 26531 flow [2021-03-25 07:57:48,299 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=25561, PETRI_DIFFERENCE_MINUEND_PLACES=706, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=884, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=815, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=26531, PETRI_PLACES=720, PETRI_TRANSITIONS=890} [2021-03-25 07:57:48,299 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 689 predicate places. [2021-03-25 07:57:48,299 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:48,299 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 720 places, 890 transitions, 26531 flow [2021-03-25 07:57:48,299 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 720 places, 890 transitions, 26531 flow [2021-03-25 07:57:48,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 720 places, 890 transitions, 26531 flow [2021-03-25 07:57:48,602 INFO L129 PetriNetUnfolder]: 459/1073 cut-off events. [2021-03-25 07:57:48,602 INFO L130 PetriNetUnfolder]: For 106864/106901 co-relation queries the response was YES. [2021-03-25 07:57:48,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16196 conditions, 1073 events. 459/1073 cut-off events. For 106864/106901 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 8072 event pairs, 2 based on Foata normal form. 10/1082 useless extension candidates. Maximal degree in co-relation 15840. Up to 311 conditions per place. [2021-03-25 07:57:48,718 INFO L142 LiptonReduction]: Number of co-enabled transitions 1122 [2021-03-25 07:57:48,802 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:48,802 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:48,802 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 503 [2021-03-25 07:57:48,803 INFO L480 AbstractCegarLoop]: Abstraction has has 720 places, 890 transitions, 26531 flow [2021-03-25 07:57:48,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:48,803 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:48,803 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:48,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-03-25 07:57:48,803 INFO L428 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:48,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:48,803 INFO L82 PathProgramCache]: Analyzing trace with hash -113142844, now seen corresponding path program 26 times [2021-03-25 07:57:48,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:48,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337803555] [2021-03-25 07:57:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:48,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:48,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:48,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:48,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:48,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:48,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:48,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:48,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:48,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:48,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:48,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:48,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:48,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:48,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:48,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:48,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:48,873 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:48,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:48,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:48,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337803555] [2021-03-25 07:57:48,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:48,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:57:48,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379207394] [2021-03-25 07:57:48,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:57:48,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:48,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:57:48,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:57:48,876 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:48,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 720 places, 890 transitions, 26531 flow. Second operand has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:48,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:48,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:48,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:49,753 INFO L129 PetriNetUnfolder]: 569/1272 cut-off events. [2021-03-25 07:57:49,754 INFO L130 PetriNetUnfolder]: For 129856/129856 co-relation queries the response was YES. [2021-03-25 07:57:49,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20910 conditions, 1272 events. 569/1272 cut-off events. For 129856/129856 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 9301 event pairs, 9 based on Foata normal form. 1/1273 useless extension candidates. Maximal degree in co-relation 20441. Up to 1022 conditions per place. [2021-03-25 07:57:49,784 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 811 selfloop transitions, 87 changer transitions 10/912 dead transitions. [2021-03-25 07:57:49,784 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 728 places, 912 transitions, 29881 flow [2021-03-25 07:57:49,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:57:49,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:57:49,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 278 transitions. [2021-03-25 07:57:49,785 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44126984126984126 [2021-03-25 07:57:49,785 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 278 transitions. [2021-03-25 07:57:49,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 278 transitions. [2021-03-25 07:57:49,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:49,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 278 transitions. [2021-03-25 07:57:49,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:49,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:49,786 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:49,786 INFO L185 Difference]: Start difference. First operand has 720 places, 890 transitions, 26531 flow. Second operand 9 states and 278 transitions. [2021-03-25 07:57:49,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 728 places, 912 transitions, 29881 flow [2021-03-25 07:57:51,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 722 places, 912 transitions, 29230 flow, removed 293 selfloop flow, removed 6 redundant places. [2021-03-25 07:57:51,233 INFO L241 Difference]: Finished difference. Result has 726 places, 892 transitions, 26658 flow [2021-03-25 07:57:51,234 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=25892, PETRI_DIFFERENCE_MINUEND_PLACES=714, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=890, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=806, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=26658, PETRI_PLACES=726, PETRI_TRANSITIONS=892} [2021-03-25 07:57:51,234 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 695 predicate places. [2021-03-25 07:57:51,234 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:51,234 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 726 places, 892 transitions, 26658 flow [2021-03-25 07:57:51,234 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 726 places, 892 transitions, 26658 flow [2021-03-25 07:57:51,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 726 places, 892 transitions, 26658 flow [2021-03-25 07:57:51,535 INFO L129 PetriNetUnfolder]: 459/1087 cut-off events. [2021-03-25 07:57:51,535 INFO L130 PetriNetUnfolder]: For 108349/108386 co-relation queries the response was YES. [2021-03-25 07:57:51,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16308 conditions, 1087 events. 459/1087 cut-off events. For 108349/108386 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 8271 event pairs, 0 based on Foata normal form. 10/1097 useless extension candidates. Maximal degree in co-relation 15950. Up to 312 conditions per place. [2021-03-25 07:57:51,572 INFO L142 LiptonReduction]: Number of co-enabled transitions 1122 [2021-03-25 07:57:51,661 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:51,661 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:51,661 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 427 [2021-03-25 07:57:51,661 INFO L480 AbstractCegarLoop]: Abstraction has has 726 places, 892 transitions, 26658 flow [2021-03-25 07:57:51,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:51,662 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:51,662 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:51,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-03-25 07:57:51,662 INFO L428 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:51,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:51,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1480725738, now seen corresponding path program 27 times [2021-03-25 07:57:51,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:51,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517827797] [2021-03-25 07:57:51,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:51,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:51,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:51,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:51,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:51,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:51,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:51,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:51,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:51,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:51,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:51,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:51,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:51,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:51,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:51,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:51,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:51,746 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:51,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:51,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517827797] [2021-03-25 07:57:51,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:51,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:51,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849341869] [2021-03-25 07:57:51,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:51,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:51,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:51,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:51,749 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:51,749 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 726 places, 892 transitions, 26658 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:51,749 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:51,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:51,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:52,575 INFO L129 PetriNetUnfolder]: 570/1276 cut-off events. [2021-03-25 07:57:52,575 INFO L130 PetriNetUnfolder]: For 132391/132391 co-relation queries the response was YES. [2021-03-25 07:57:52,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21230 conditions, 1276 events. 570/1276 cut-off events. For 132391/132391 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 9363 event pairs, 10 based on Foata normal form. 1/1277 useless extension candidates. Maximal degree in co-relation 20759. Up to 1045 conditions per place. [2021-03-25 07:57:52,605 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 837 selfloop transitions, 64 changer transitions 11/916 dead transitions. [2021-03-25 07:57:52,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 735 places, 916 transitions, 30364 flow [2021-03-25 07:57:52,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:52,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:52,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 07:57:52,606 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43857142857142856 [2021-03-25 07:57:52,606 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 07:57:52,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 07:57:52,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:52,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 07:57:52,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:52,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:52,607 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:52,607 INFO L185 Difference]: Start difference. First operand has 726 places, 892 transitions, 26658 flow. Second operand 10 states and 307 transitions. [2021-03-25 07:57:52,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 735 places, 916 transitions, 30364 flow [2021-03-25 07:57:54,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 734 places, 916 transitions, 29886 flow, removed 231 selfloop flow, removed 1 redundant places. [2021-03-25 07:57:54,093 INFO L241 Difference]: Finished difference. Result has 741 places, 895 transitions, 27287 flow [2021-03-25 07:57:54,094 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=26180, PETRI_DIFFERENCE_MINUEND_PLACES=725, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=892, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=831, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=27287, PETRI_PLACES=741, PETRI_TRANSITIONS=895} [2021-03-25 07:57:54,094 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 710 predicate places. [2021-03-25 07:57:54,094 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:54,094 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 741 places, 895 transitions, 27287 flow [2021-03-25 07:57:54,094 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 741 places, 895 transitions, 27287 flow [2021-03-25 07:57:54,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 741 places, 895 transitions, 27287 flow [2021-03-25 07:57:54,475 INFO L129 PetriNetUnfolder]: 460/1090 cut-off events. [2021-03-25 07:57:54,475 INFO L130 PetriNetUnfolder]: For 124313/124335 co-relation queries the response was YES. [2021-03-25 07:57:54,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16706 conditions, 1090 events. 460/1090 cut-off events. For 124313/124335 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 8356 event pairs, 0 based on Foata normal form. 10/1100 useless extension candidates. Maximal degree in co-relation 16340. Up to 316 conditions per place. [2021-03-25 07:57:54,506 INFO L142 LiptonReduction]: Number of co-enabled transitions 1124 [2021-03-25 07:57:54,591 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:54,591 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:54,591 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 497 [2021-03-25 07:57:54,591 INFO L480 AbstractCegarLoop]: Abstraction has has 741 places, 895 transitions, 27287 flow [2021-03-25 07:57:54,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:54,591 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:54,592 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:54,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-03-25 07:57:54,592 INFO L428 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:54,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:54,592 INFO L82 PathProgramCache]: Analyzing trace with hash -388978154, now seen corresponding path program 28 times [2021-03-25 07:57:54,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:54,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277592660] [2021-03-25 07:57:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:54,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:54,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:54,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:54,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:54,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:54,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:54,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:54,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:54,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:54,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:54,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:54,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:54,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:54,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:54,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:54,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:54,655 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:54,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:54,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:54,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277592660] [2021-03-25 07:57:54,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:54,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:54,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459905102] [2021-03-25 07:57:54,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:54,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:54,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:54,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:54,658 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:54,658 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 741 places, 895 transitions, 27287 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:54,658 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:54,658 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:54,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:55,535 INFO L129 PetriNetUnfolder]: 569/1274 cut-off events. [2021-03-25 07:57:55,535 INFO L130 PetriNetUnfolder]: For 137226/137226 co-relation queries the response was YES. [2021-03-25 07:57:55,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21477 conditions, 1274 events. 569/1274 cut-off events. For 137226/137226 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 9323 event pairs, 13 based on Foata normal form. 1/1275 useless extension candidates. Maximal degree in co-relation 20997. Up to 1005 conditions per place. [2021-03-25 07:57:55,567 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 777 selfloop transitions, 122 changer transitions 13/916 dead transitions. [2021-03-25 07:57:55,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 750 places, 916 transitions, 30599 flow [2021-03-25 07:57:55,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:55,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:55,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 07:57:55,569 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43857142857142856 [2021-03-25 07:57:55,569 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 07:57:55,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 07:57:55,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:55,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 07:57:55,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:55,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:55,570 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:55,570 INFO L185 Difference]: Start difference. First operand has 741 places, 895 transitions, 27287 flow. Second operand 10 states and 307 transitions. [2021-03-25 07:57:55,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 750 places, 916 transitions, 30599 flow [2021-03-25 07:57:57,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 741 places, 916 transitions, 29743 flow, removed 385 selfloop flow, removed 9 redundant places. [2021-03-25 07:57:57,173 INFO L241 Difference]: Finished difference. Result has 745 places, 893 transitions, 27110 flow [2021-03-25 07:57:57,173 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=26449, PETRI_DIFFERENCE_MINUEND_PLACES=732, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=895, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=775, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=27110, PETRI_PLACES=745, PETRI_TRANSITIONS=893} [2021-03-25 07:57:57,173 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 714 predicate places. [2021-03-25 07:57:57,174 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:57:57,174 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 745 places, 893 transitions, 27110 flow [2021-03-25 07:57:57,174 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 745 places, 893 transitions, 27110 flow [2021-03-25 07:57:57,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 745 places, 893 transitions, 27110 flow [2021-03-25 07:57:57,493 INFO L129 PetriNetUnfolder]: 459/1075 cut-off events. [2021-03-25 07:57:57,493 INFO L130 PetriNetUnfolder]: For 113471/113484 co-relation queries the response was YES. [2021-03-25 07:57:57,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16626 conditions, 1075 events. 459/1075 cut-off events. For 113471/113484 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 8176 event pairs, 0 based on Foata normal form. 8/1083 useless extension candidates. Maximal degree in co-relation 16259. Up to 314 conditions per place. [2021-03-25 07:57:57,532 INFO L142 LiptonReduction]: Number of co-enabled transitions 1120 [2021-03-25 07:57:57,624 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:57:57,625 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:57:57,625 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 452 [2021-03-25 07:57:57,625 INFO L480 AbstractCegarLoop]: Abstraction has has 745 places, 893 transitions, 27110 flow [2021-03-25 07:57:57,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:57,625 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:57:57,625 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:57:57,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-03-25 07:57:57,625 INFO L428 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:57:57,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:57:57,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1470022110, now seen corresponding path program 29 times [2021-03-25 07:57:57,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:57:57,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804334963] [2021-03-25 07:57:57,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:57:57,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:57:57,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:57,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:57,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:57,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:57,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:57,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:57,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:57,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:57,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:57,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:57,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:57,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:57:57,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:57,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:57:57,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:57:57,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:57:57,706 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:57:57,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:57:57,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:57:57,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804334963] [2021-03-25 07:57:57,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:57:57,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:57:57,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427151749] [2021-03-25 07:57:57,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:57:57,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:57:57,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:57:57,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:57:57,710 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 70 [2021-03-25 07:57:57,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 745 places, 893 transitions, 27110 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:57,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:57:57,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 70 [2021-03-25 07:57:57,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:57:58,595 INFO L129 PetriNetUnfolder]: 565/1276 cut-off events. [2021-03-25 07:57:58,596 INFO L130 PetriNetUnfolder]: For 128410/128410 co-relation queries the response was YES. [2021-03-25 07:57:58,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21273 conditions, 1276 events. 565/1276 cut-off events. For 128410/128410 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 9407 event pairs, 17 based on Foata normal form. 1/1277 useless extension candidates. Maximal degree in co-relation 20792. Up to 1085 conditions per place. [2021-03-25 07:57:58,629 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 867 selfloop transitions, 33 changer transitions 8/912 dead transitions. [2021-03-25 07:57:58,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 754 places, 912 transitions, 30197 flow [2021-03-25 07:57:58,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:57:58,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:57:58,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 07:57:58,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43714285714285717 [2021-03-25 07:57:58,630 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 07:57:58,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 07:57:58,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:57:58,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 07:57:58,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:58,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:58,631 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 70.0) internal successors, (770), 11 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:57:58,631 INFO L185 Difference]: Start difference. First operand has 745 places, 893 transitions, 27110 flow. Second operand 10 states and 306 transitions. [2021-03-25 07:57:58,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 754 places, 912 transitions, 30197 flow [2021-03-25 07:58:00,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 744 places, 912 transitions, 29644 flow, removed 183 selfloop flow, removed 10 redundant places. [2021-03-25 07:58:00,324 INFO L241 Difference]: Finished difference. Result has 747 places, 896 transitions, 27377 flow [2021-03-25 07:58:00,324 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=26563, PETRI_DIFFERENCE_MINUEND_PLACES=735, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=893, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=863, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=27377, PETRI_PLACES=747, PETRI_TRANSITIONS=896} [2021-03-25 07:58:00,324 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 716 predicate places. [2021-03-25 07:58:00,324 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:00,324 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 747 places, 896 transitions, 27377 flow [2021-03-25 07:58:00,325 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 747 places, 896 transitions, 27377 flow [2021-03-25 07:58:00,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 747 places, 896 transitions, 27377 flow [2021-03-25 07:58:00,673 INFO L129 PetriNetUnfolder]: 461/1077 cut-off events. [2021-03-25 07:58:00,673 INFO L130 PetriNetUnfolder]: For 119233/119254 co-relation queries the response was YES. [2021-03-25 07:58:00,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16804 conditions, 1077 events. 461/1077 cut-off events. For 119233/119254 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 8130 event pairs, 0 based on Foata normal form. 10/1087 useless extension candidates. Maximal degree in co-relation 16435. Up to 318 conditions per place. [2021-03-25 07:58:00,707 INFO L142 LiptonReduction]: Number of co-enabled transitions 1118 [2021-03-25 07:58:00,936 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:00,936 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 07:58:00,936 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 612 [2021-03-25 07:58:00,936 INFO L480 AbstractCegarLoop]: Abstraction has has 747 places, 896 transitions, 27433 flow [2021-03-25 07:58:00,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:00,936 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:00,936 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:00,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-03-25 07:58:00,937 INFO L428 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:00,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:00,937 INFO L82 PathProgramCache]: Analyzing trace with hash 2051609792, now seen corresponding path program 30 times [2021-03-25 07:58:00,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:00,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067878405] [2021-03-25 07:58:00,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:00,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:00,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:00,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:00,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:00,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:00,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:00,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:00,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:00,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:00,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 07:58:00,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:00,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:00,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:00,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:01,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:01,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:01,005 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:01,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:01,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:01,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067878405] [2021-03-25 07:58:01,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:01,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:58:01,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800204318] [2021-03-25 07:58:01,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:58:01,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:01,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:58:01,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:58:01,009 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 72 [2021-03-25 07:58:01,009 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 747 places, 896 transitions, 27433 flow. Second operand has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:01,009 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:01,009 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 72 [2021-03-25 07:58:01,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:01,942 INFO L129 PetriNetUnfolder]: 571/1273 cut-off events. [2021-03-25 07:58:01,942 INFO L130 PetriNetUnfolder]: For 143268/143268 co-relation queries the response was YES. [2021-03-25 07:58:01,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21825 conditions, 1273 events. 571/1273 cut-off events. For 143268/143268 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 9269 event pairs, 6 based on Foata normal form. 1/1272 useless extension candidates. Maximal degree in co-relation 21345. Up to 1082 conditions per place. [2021-03-25 07:58:01,987 INFO L132 encePairwiseOnDemand]: 62/72 looper letters, 857 selfloop transitions, 55 changer transitions 3/919 dead transitions. [2021-03-25 07:58:01,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 755 places, 919 transitions, 31293 flow [2021-03-25 07:58:01,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:58:01,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:58:01,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 278 transitions. [2021-03-25 07:58:01,989 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42901234567901236 [2021-03-25 07:58:01,989 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 278 transitions. [2021-03-25 07:58:01,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 278 transitions. [2021-03-25 07:58:01,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:01,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 278 transitions. [2021-03-25 07:58:01,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:01,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:01,990 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:01,990 INFO L185 Difference]: Start difference. First operand has 747 places, 896 transitions, 27433 flow. Second operand 9 states and 278 transitions. [2021-03-25 07:58:01,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 755 places, 919 transitions, 31293 flow [2021-03-25 07:58:03,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 742 places, 919 transitions, 30430 flow, removed 383 selfloop flow, removed 13 redundant places. [2021-03-25 07:58:03,758 INFO L241 Difference]: Finished difference. Result has 743 places, 908 transitions, 28301 flow [2021-03-25 07:58:03,759 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=26576, PETRI_DIFFERENCE_MINUEND_PLACES=734, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=896, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=849, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=28301, PETRI_PLACES=743, PETRI_TRANSITIONS=908} [2021-03-25 07:58:03,759 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 712 predicate places. [2021-03-25 07:58:03,759 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:03,759 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 743 places, 908 transitions, 28301 flow [2021-03-25 07:58:03,759 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 743 places, 908 transitions, 28301 flow [2021-03-25 07:58:03,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 743 places, 908 transitions, 28301 flow [2021-03-25 07:58:04,107 INFO L129 PetriNetUnfolder]: 468/1100 cut-off events. [2021-03-25 07:58:04,107 INFO L130 PetriNetUnfolder]: For 125502/125529 co-relation queries the response was YES. [2021-03-25 07:58:04,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17321 conditions, 1100 events. 468/1100 cut-off events. For 125502/125529 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 8345 event pairs, 2 based on Foata normal form. 8/1108 useless extension candidates. Maximal degree in co-relation 16955. Up to 326 conditions per place. [2021-03-25 07:58:04,149 INFO L142 LiptonReduction]: Number of co-enabled transitions 1118 [2021-03-25 07:58:04,246 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:04,246 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:04,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 487 [2021-03-25 07:58:04,247 INFO L480 AbstractCegarLoop]: Abstraction has has 743 places, 908 transitions, 28301 flow [2021-03-25 07:58:04,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:04,247 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:04,247 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:04,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-03-25 07:58:04,247 INFO L428 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:04,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:04,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1461655793, now seen corresponding path program 1 times [2021-03-25 07:58:04,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:04,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573843347] [2021-03-25 07:58:04,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:04,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:04,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:04,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:04,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:04,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:04,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:04,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:04,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:04,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:04,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:04,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:04,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:04,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:04,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:04,275 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:04,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:04,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:04,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573843347] [2021-03-25 07:58:04,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:04,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:58:04,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464942488] [2021-03-25 07:58:04,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:58:04,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:04,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:58:04,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:58:04,278 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 72 [2021-03-25 07:58:04,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 743 places, 908 transitions, 28301 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:04,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:04,278 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 72 [2021-03-25 07:58:04,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:05,081 INFO L129 PetriNetUnfolder]: 571/1280 cut-off events. [2021-03-25 07:58:05,081 INFO L130 PetriNetUnfolder]: For 146259/146261 co-relation queries the response was YES. [2021-03-25 07:58:05,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21583 conditions, 1280 events. 571/1280 cut-off events. For 146259/146261 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 9372 event pairs, 61 based on Foata normal form. 3/1283 useless extension candidates. Maximal degree in co-relation 21214. Up to 1113 conditions per place. [2021-03-25 07:58:05,119 INFO L132 encePairwiseOnDemand]: 63/72 looper letters, 880 selfloop transitions, 29 changer transitions 2/916 dead transitions. [2021-03-25 07:58:05,119 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 748 places, 916 transitions, 30915 flow [2021-03-25 07:58:05,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:58:05,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:58:05,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 196 transitions. [2021-03-25 07:58:05,120 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2021-03-25 07:58:05,120 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 196 transitions. [2021-03-25 07:58:05,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 196 transitions. [2021-03-25 07:58:05,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:05,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 196 transitions. [2021-03-25 07:58:05,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 32.666666666666664) internal successors, (196), 6 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:05,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:05,120 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:05,120 INFO L185 Difference]: Start difference. First operand has 743 places, 908 transitions, 28301 flow. Second operand 6 states and 196 transitions. [2021-03-25 07:58:05,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 748 places, 916 transitions, 30915 flow [2021-03-25 07:58:06,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 745 places, 916 transitions, 29455 flow, removed 712 selfloop flow, removed 3 redundant places. [2021-03-25 07:58:06,730 INFO L241 Difference]: Finished difference. Result has 748 places, 912 transitions, 27458 flow [2021-03-25 07:58:06,731 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=26845, PETRI_DIFFERENCE_MINUEND_PLACES=740, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=908, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=880, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=27458, PETRI_PLACES=748, PETRI_TRANSITIONS=912} [2021-03-25 07:58:06,731 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 717 predicate places. [2021-03-25 07:58:06,731 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:06,731 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 748 places, 912 transitions, 27458 flow [2021-03-25 07:58:06,731 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 748 places, 912 transitions, 27458 flow [2021-03-25 07:58:06,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 748 places, 912 transitions, 27458 flow [2021-03-25 07:58:07,068 INFO L129 PetriNetUnfolder]: 470/1113 cut-off events. [2021-03-25 07:58:07,068 INFO L130 PetriNetUnfolder]: For 112230/112257 co-relation queries the response was YES. [2021-03-25 07:58:07,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16935 conditions, 1113 events. 470/1113 cut-off events. For 112230/112257 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 8464 event pairs, 2 based on Foata normal form. 8/1121 useless extension candidates. Maximal degree in co-relation 16566. Up to 322 conditions per place. [2021-03-25 07:58:07,109 INFO L142 LiptonReduction]: Number of co-enabled transitions 1122 [2021-03-25 07:58:07,191 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:07,191 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:07,191 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 460 [2021-03-25 07:58:07,192 INFO L480 AbstractCegarLoop]: Abstraction has has 748 places, 912 transitions, 27458 flow [2021-03-25 07:58:07,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:07,192 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:07,192 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:07,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-03-25 07:58:07,192 INFO L428 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:07,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:07,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1312971340, now seen corresponding path program 1 times [2021-03-25 07:58:07,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:07,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662923868] [2021-03-25 07:58:07,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:07,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:07,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:07,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:07,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:07,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:07,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:07,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:07,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:07,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:07,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:07,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:07,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:07,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:07,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:07,227 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:07,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:07,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:07,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662923868] [2021-03-25 07:58:07,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:07,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:58:07,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534799965] [2021-03-25 07:58:07,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:58:07,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:07,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:58:07,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:58:07,230 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 72 [2021-03-25 07:58:07,230 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 748 places, 912 transitions, 27458 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:07,230 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:07,230 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 72 [2021-03-25 07:58:07,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:08,007 INFO L129 PetriNetUnfolder]: 569/1278 cut-off events. [2021-03-25 07:58:08,007 INFO L130 PetriNetUnfolder]: For 142516/142518 co-relation queries the response was YES. [2021-03-25 07:58:08,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21005 conditions, 1278 events. 569/1278 cut-off events. For 142516/142518 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 9429 event pairs, 81 based on Foata normal form. 3/1281 useless extension candidates. Maximal degree in co-relation 20522. Up to 1092 conditions per place. [2021-03-25 07:58:08,040 INFO L132 encePairwiseOnDemand]: 63/72 looper letters, 857 selfloop transitions, 55 changer transitions 5/922 dead transitions. [2021-03-25 07:58:08,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 754 places, 922 transitions, 30266 flow [2021-03-25 07:58:08,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:58:08,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:58:08,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2021-03-25 07:58:08,041 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2021-03-25 07:58:08,041 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 228 transitions. [2021-03-25 07:58:08,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 228 transitions. [2021-03-25 07:58:08,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:08,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 228 transitions. [2021-03-25 07:58:08,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:08,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 72.0) internal successors, (576), 8 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:08,042 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 72.0) internal successors, (576), 8 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:08,042 INFO L185 Difference]: Start difference. First operand has 748 places, 912 transitions, 27458 flow. Second operand 7 states and 228 transitions. [2021-03-25 07:58:08,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 754 places, 922 transitions, 30266 flow [2021-03-25 07:58:09,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 753 places, 922 transitions, 29793 flow, removed 233 selfloop flow, removed 1 redundant places. [2021-03-25 07:58:09,641 INFO L241 Difference]: Finished difference. Result has 758 places, 914 transitions, 27466 flow [2021-03-25 07:58:09,641 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=26985, PETRI_DIFFERENCE_MINUEND_PLACES=747, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=912, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=857, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27466, PETRI_PLACES=758, PETRI_TRANSITIONS=914} [2021-03-25 07:58:09,642 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 727 predicate places. [2021-03-25 07:58:09,642 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:09,642 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 758 places, 914 transitions, 27466 flow [2021-03-25 07:58:09,642 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 758 places, 914 transitions, 27466 flow [2021-03-25 07:58:09,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 758 places, 914 transitions, 27466 flow [2021-03-25 07:58:09,986 INFO L129 PetriNetUnfolder]: 471/1109 cut-off events. [2021-03-25 07:58:09,986 INFO L130 PetriNetUnfolder]: For 118949/118986 co-relation queries the response was YES. [2021-03-25 07:58:10,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17001 conditions, 1109 events. 471/1109 cut-off events. For 118949/118986 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 8516 event pairs, 1 based on Foata normal form. 10/1119 useless extension candidates. Maximal degree in co-relation 16626. Up to 321 conditions per place. [2021-03-25 07:58:10,028 INFO L142 LiptonReduction]: Number of co-enabled transitions 1122 [2021-03-25 07:58:10,125 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:10,125 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:10,125 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 483 [2021-03-25 07:58:10,125 INFO L480 AbstractCegarLoop]: Abstraction has has 758 places, 914 transitions, 27466 flow [2021-03-25 07:58:10,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:10,125 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:10,125 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:10,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-03-25 07:58:10,126 INFO L428 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:10,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:10,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1100101647, now seen corresponding path program 2 times [2021-03-25 07:58:10,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:10,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711632796] [2021-03-25 07:58:10,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:10,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:10,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:10,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:10,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:10,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:10,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:10,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:10,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:10,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:10,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:10,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:10,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:10,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:10,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:10,168 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:10,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:10,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711632796] [2021-03-25 07:58:10,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:10,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:58:10,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957269771] [2021-03-25 07:58:10,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:58:10,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:10,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:58:10,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:58:10,170 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 72 [2021-03-25 07:58:10,171 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 758 places, 914 transitions, 27466 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:10,171 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:10,171 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 72 [2021-03-25 07:58:10,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:11,014 INFO L129 PetriNetUnfolder]: 572/1281 cut-off events. [2021-03-25 07:58:11,014 INFO L130 PetriNetUnfolder]: For 134276/134276 co-relation queries the response was YES. [2021-03-25 07:58:11,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21084 conditions, 1281 events. 572/1281 cut-off events. For 134276/134276 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 9414 event pairs, 1 based on Foata normal form. 1/1282 useless extension candidates. Maximal degree in co-relation 20706. Up to 1097 conditions per place. [2021-03-25 07:58:11,046 INFO L132 encePairwiseOnDemand]: 63/72 looper letters, 858 selfloop transitions, 57 changer transitions 2/922 dead transitions. [2021-03-25 07:58:11,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 765 places, 922 transitions, 29722 flow [2021-03-25 07:58:11,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:58:11,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:58:11,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 261 transitions. [2021-03-25 07:58:11,047 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.453125 [2021-03-25 07:58:11,047 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 261 transitions. [2021-03-25 07:58:11,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 261 transitions. [2021-03-25 07:58:11,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:11,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 261 transitions. [2021-03-25 07:58:11,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:11,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 72.0) internal successors, (648), 9 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:11,048 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 72.0) internal successors, (648), 9 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:11,048 INFO L185 Difference]: Start difference. First operand has 758 places, 914 transitions, 27466 flow. Second operand 8 states and 261 transitions. [2021-03-25 07:58:11,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 765 places, 922 transitions, 29722 flow [2021-03-25 07:58:12,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 761 places, 922 transitions, 29393 flow, removed 131 selfloop flow, removed 4 redundant places. [2021-03-25 07:58:12,834 INFO L241 Difference]: Finished difference. Result has 764 places, 915 transitions, 27425 flow [2021-03-25 07:58:12,834 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=27137, PETRI_DIFFERENCE_MINUEND_PLACES=754, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=914, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=857, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=27425, PETRI_PLACES=764, PETRI_TRANSITIONS=915} [2021-03-25 07:58:12,834 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 733 predicate places. [2021-03-25 07:58:12,835 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:12,835 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 764 places, 915 transitions, 27425 flow [2021-03-25 07:58:12,835 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 764 places, 915 transitions, 27425 flow [2021-03-25 07:58:12,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 764 places, 915 transitions, 27425 flow [2021-03-25 07:58:13,172 INFO L129 PetriNetUnfolder]: 471/1111 cut-off events. [2021-03-25 07:58:13,172 INFO L130 PetriNetUnfolder]: For 110269/110282 co-relation queries the response was YES. [2021-03-25 07:58:13,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16984 conditions, 1111 events. 471/1111 cut-off events. For 110269/110282 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 8526 event pairs, 2 based on Foata normal form. 8/1119 useless extension candidates. Maximal degree in co-relation 16607. Up to 321 conditions per place. [2021-03-25 07:58:13,213 INFO L142 LiptonReduction]: Number of co-enabled transitions 1122 [2021-03-25 07:58:13,310 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:13,310 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:13,310 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 475 [2021-03-25 07:58:13,311 INFO L480 AbstractCegarLoop]: Abstraction has has 764 places, 915 transitions, 27425 flow [2021-03-25 07:58:13,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:13,311 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:13,311 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:13,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-03-25 07:58:13,311 INFO L428 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:13,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:13,311 INFO L82 PathProgramCache]: Analyzing trace with hash 2041800682, now seen corresponding path program 2 times [2021-03-25 07:58:13,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:13,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962033053] [2021-03-25 07:58:13,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:13,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:13,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:13,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:13,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:13,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:13,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:13,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:13,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:13,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:13,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:13,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:13,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:13,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:13,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:13,339 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:13,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:13,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:13,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962033053] [2021-03-25 07:58:13,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:13,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:58:13,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096802353] [2021-03-25 07:58:13,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:58:13,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:13,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:58:13,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:58:13,342 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 72 [2021-03-25 07:58:13,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 764 places, 915 transitions, 27425 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:13,342 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:13,342 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 72 [2021-03-25 07:58:13,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:14,131 INFO L129 PetriNetUnfolder]: 568/1275 cut-off events. [2021-03-25 07:58:14,131 INFO L130 PetriNetUnfolder]: For 144893/144899 co-relation queries the response was YES. [2021-03-25 07:58:14,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20789 conditions, 1275 events. 568/1275 cut-off events. For 144893/144899 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 9389 event pairs, 83 based on Foata normal form. 4/1278 useless extension candidates. Maximal degree in co-relation 20297. Up to 1108 conditions per place. [2021-03-25 07:58:14,163 INFO L132 encePairwiseOnDemand]: 63/72 looper letters, 883 selfloop transitions, 30 changer transitions 2/920 dead transitions. [2021-03-25 07:58:14,163 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 769 places, 920 transitions, 29665 flow [2021-03-25 07:58:14,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:58:14,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:58:14,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 196 transitions. [2021-03-25 07:58:14,164 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2021-03-25 07:58:14,164 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 196 transitions. [2021-03-25 07:58:14,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 196 transitions. [2021-03-25 07:58:14,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:14,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 196 transitions. [2021-03-25 07:58:14,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 32.666666666666664) internal successors, (196), 6 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:14,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:14,165 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:14,165 INFO L185 Difference]: Start difference. First operand has 764 places, 915 transitions, 27425 flow. Second operand 6 states and 196 transitions. [2021-03-25 07:58:14,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 769 places, 920 transitions, 29665 flow [2021-03-25 07:58:15,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 761 places, 920 transitions, 29453 flow, removed 45 selfloop flow, removed 8 redundant places. [2021-03-25 07:58:15,834 INFO L241 Difference]: Finished difference. Result has 764 places, 916 transitions, 27447 flow [2021-03-25 07:58:15,835 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=27215, PETRI_DIFFERENCE_MINUEND_PLACES=756, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=915, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=885, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=27447, PETRI_PLACES=764, PETRI_TRANSITIONS=916} [2021-03-25 07:58:15,835 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 733 predicate places. [2021-03-25 07:58:15,835 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:15,835 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 764 places, 916 transitions, 27447 flow [2021-03-25 07:58:15,835 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 764 places, 916 transitions, 27447 flow [2021-03-25 07:58:15,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 764 places, 916 transitions, 27447 flow [2021-03-25 07:58:16,179 INFO L129 PetriNetUnfolder]: 471/1118 cut-off events. [2021-03-25 07:58:16,179 INFO L130 PetriNetUnfolder]: For 117898/117925 co-relation queries the response was YES. [2021-03-25 07:58:16,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17016 conditions, 1118 events. 471/1118 cut-off events. For 117898/117925 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 8582 event pairs, 1 based on Foata normal form. 8/1126 useless extension candidates. Maximal degree in co-relation 16638. Up to 321 conditions per place. [2021-03-25 07:58:16,223 INFO L142 LiptonReduction]: Number of co-enabled transitions 1122 [2021-03-25 07:58:16,318 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:16,318 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:16,318 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 483 [2021-03-25 07:58:16,318 INFO L480 AbstractCegarLoop]: Abstraction has has 764 places, 916 transitions, 27447 flow [2021-03-25 07:58:16,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:16,318 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:16,319 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:16,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-03-25 07:58:16,319 INFO L428 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:16,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:16,319 INFO L82 PathProgramCache]: Analyzing trace with hash -377995697, now seen corresponding path program 3 times [2021-03-25 07:58:16,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:16,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402811393] [2021-03-25 07:58:16,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:16,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:16,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:16,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:16,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:16,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:16,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:16,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:16,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:16,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:16,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:16,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:16,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:16,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:16,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:16,347 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:16,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:16,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402811393] [2021-03-25 07:58:16,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:16,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 07:58:16,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791784532] [2021-03-25 07:58:16,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 07:58:16,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:16,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 07:58:16,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 07:58:16,350 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 72 [2021-03-25 07:58:16,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 764 places, 916 transitions, 27447 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:16,350 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:16,350 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 72 [2021-03-25 07:58:16,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:17,227 INFO L129 PetriNetUnfolder]: 572/1284 cut-off events. [2021-03-25 07:58:17,228 INFO L130 PetriNetUnfolder]: For 150029/150031 co-relation queries the response was YES. [2021-03-25 07:58:17,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21098 conditions, 1284 events. 572/1284 cut-off events. For 150029/150031 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 9405 event pairs, 56 based on Foata normal form. 3/1287 useless extension candidates. Maximal degree in co-relation 20717. Up to 1117 conditions per place. [2021-03-25 07:58:17,260 INFO L132 encePairwiseOnDemand]: 63/72 looper letters, 883 selfloop transitions, 31 changer transitions 2/921 dead transitions. [2021-03-25 07:58:17,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 769 places, 921 transitions, 29697 flow [2021-03-25 07:58:17,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:58:17,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:58:17,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 196 transitions. [2021-03-25 07:58:17,261 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2021-03-25 07:58:17,261 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 196 transitions. [2021-03-25 07:58:17,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 196 transitions. [2021-03-25 07:58:17,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:17,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 196 transitions. [2021-03-25 07:58:17,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 32.666666666666664) internal successors, (196), 6 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:17,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:17,262 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:17,262 INFO L185 Difference]: Start difference. First operand has 764 places, 916 transitions, 27447 flow. Second operand 6 states and 196 transitions. [2021-03-25 07:58:17,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 769 places, 921 transitions, 29697 flow [2021-03-25 07:58:19,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 767 places, 921 transitions, 29555 flow, removed 56 selfloop flow, removed 2 redundant places. [2021-03-25 07:58:19,164 INFO L241 Difference]: Finished difference. Result has 770 places, 917 transitions, 27543 flow [2021-03-25 07:58:19,164 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=27305, PETRI_DIFFERENCE_MINUEND_PLACES=762, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=916, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=885, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=27543, PETRI_PLACES=770, PETRI_TRANSITIONS=917} [2021-03-25 07:58:19,164 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 739 predicate places. [2021-03-25 07:58:19,165 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:19,165 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 770 places, 917 transitions, 27543 flow [2021-03-25 07:58:19,165 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 770 places, 917 transitions, 27543 flow [2021-03-25 07:58:19,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 770 places, 917 transitions, 27543 flow [2021-03-25 07:58:19,543 INFO L129 PetriNetUnfolder]: 471/1120 cut-off events. [2021-03-25 07:58:19,543 INFO L130 PetriNetUnfolder]: For 122743/122780 co-relation queries the response was YES. [2021-03-25 07:58:19,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17083 conditions, 1120 events. 471/1120 cut-off events. For 122743/122780 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 8586 event pairs, 1 based on Foata normal form. 10/1130 useless extension candidates. Maximal degree in co-relation 16702. Up to 321 conditions per place. [2021-03-25 07:58:19,584 INFO L142 LiptonReduction]: Number of co-enabled transitions 1122 [2021-03-25 07:58:19,679 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:19,680 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:19,680 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 515 [2021-03-25 07:58:19,680 INFO L480 AbstractCegarLoop]: Abstraction has has 770 places, 917 transitions, 27543 flow [2021-03-25 07:58:19,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:19,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:19,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:19,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-03-25 07:58:19,680 INFO L428 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:19,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:19,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1393697438, now seen corresponding path program 3 times [2021-03-25 07:58:19,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:19,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077140999] [2021-03-25 07:58:19,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:19,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:19,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:19,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:19,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:19,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:19,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:19,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:19,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:19,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:19,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:19,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:19,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:19,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:19,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:19,726 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:19,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:19,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:19,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077140999] [2021-03-25 07:58:19,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:19,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:58:19,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704171822] [2021-03-25 07:58:19,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:58:19,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:19,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:58:19,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:58:19,729 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 72 [2021-03-25 07:58:19,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 770 places, 917 transitions, 27543 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:19,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:19,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 72 [2021-03-25 07:58:19,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:20,549 INFO L129 PetriNetUnfolder]: 567/1273 cut-off events. [2021-03-25 07:58:20,549 INFO L130 PetriNetUnfolder]: For 133863/133865 co-relation queries the response was YES. [2021-03-25 07:58:20,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20741 conditions, 1273 events. 567/1273 cut-off events. For 133863/133865 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 9373 event pairs, 1 based on Foata normal form. 3/1276 useless extension candidates. Maximal degree in co-relation 20245. Up to 1095 conditions per place. [2021-03-25 07:58:20,581 INFO L132 encePairwiseOnDemand]: 63/72 looper letters, 865 selfloop transitions, 47 changer transitions 4/921 dead transitions. [2021-03-25 07:58:20,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 776 places, 921 transitions, 29523 flow [2021-03-25 07:58:20,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:58:20,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:58:20,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2021-03-25 07:58:20,582 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2021-03-25 07:58:20,582 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 228 transitions. [2021-03-25 07:58:20,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 228 transitions. [2021-03-25 07:58:20,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:20,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 228 transitions. [2021-03-25 07:58:20,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:20,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 72.0) internal successors, (576), 8 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:20,583 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 72.0) internal successors, (576), 8 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:20,583 INFO L185 Difference]: Start difference. First operand has 770 places, 917 transitions, 27543 flow. Second operand 7 states and 228 transitions. [2021-03-25 07:58:20,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 776 places, 921 transitions, 29523 flow [2021-03-25 07:58:22,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 774 places, 921 transitions, 29378 flow, removed 57 selfloop flow, removed 2 redundant places. [2021-03-25 07:58:22,353 INFO L241 Difference]: Finished difference. Result has 776 places, 914 transitions, 27428 flow [2021-03-25 07:58:22,353 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=27398, PETRI_DIFFERENCE_MINUEND_PLACES=768, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=917, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=870, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27428, PETRI_PLACES=776, PETRI_TRANSITIONS=914} [2021-03-25 07:58:22,353 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 745 predicate places. [2021-03-25 07:58:22,354 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:22,354 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 776 places, 914 transitions, 27428 flow [2021-03-25 07:58:22,354 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 776 places, 914 transitions, 27428 flow [2021-03-25 07:58:22,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 776 places, 914 transitions, 27428 flow [2021-03-25 07:58:22,698 INFO L129 PetriNetUnfolder]: 470/1115 cut-off events. [2021-03-25 07:58:22,698 INFO L130 PetriNetUnfolder]: For 120410/120447 co-relation queries the response was YES. [2021-03-25 07:58:22,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17024 conditions, 1115 events. 470/1115 cut-off events. For 120410/120447 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 8532 event pairs, 1 based on Foata normal form. 10/1125 useless extension candidates. Maximal degree in co-relation 16641. Up to 321 conditions per place. [2021-03-25 07:58:22,739 INFO L142 LiptonReduction]: Number of co-enabled transitions 1122 [2021-03-25 07:58:22,978 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:22,978 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:58:22,978 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 624 [2021-03-25 07:58:22,978 INFO L480 AbstractCegarLoop]: Abstraction has has 776 places, 914 transitions, 27496 flow [2021-03-25 07:58:22,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:22,978 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:22,978 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:22,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-03-25 07:58:22,978 INFO L428 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:22,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:22,979 INFO L82 PathProgramCache]: Analyzing trace with hash -763761618, now seen corresponding path program 4 times [2021-03-25 07:58:22,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:22,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318795799] [2021-03-25 07:58:22,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:22,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:22,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:22,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:22,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:22,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:22,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:22,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:22,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:22,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:22,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:23,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:23,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:23,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:23,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:23,014 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:23,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:23,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:23,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318795799] [2021-03-25 07:58:23,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:23,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:58:23,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145939401] [2021-03-25 07:58:23,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:58:23,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:23,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:58:23,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:58:23,017 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2021-03-25 07:58:23,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 776 places, 914 transitions, 27496 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:23,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:23,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2021-03-25 07:58:23,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:23,946 INFO L129 PetriNetUnfolder]: 567/1273 cut-off events. [2021-03-25 07:58:23,946 INFO L130 PetriNetUnfolder]: For 147210/147216 co-relation queries the response was YES. [2021-03-25 07:58:23,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20874 conditions, 1273 events. 567/1273 cut-off events. For 147210/147216 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 9402 event pairs, 85 based on Foata normal form. 4/1275 useless extension candidates. Maximal degree in co-relation 20376. Up to 1094 conditions per place. [2021-03-25 07:58:23,972 INFO L132 encePairwiseOnDemand]: 64/73 looper letters, 854 selfloop transitions, 58 changer transitions 2/919 dead transitions. [2021-03-25 07:58:23,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 782 places, 919 transitions, 29754 flow [2021-03-25 07:58:23,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:58:23,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:58:23,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2021-03-25 07:58:23,973 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4461839530332681 [2021-03-25 07:58:23,973 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 228 transitions. [2021-03-25 07:58:23,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 228 transitions. [2021-03-25 07:58:23,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:23,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 228 transitions. [2021-03-25 07:58:23,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:23,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 73.0) internal successors, (584), 8 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:23,974 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 73.0) internal successors, (584), 8 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:23,974 INFO L185 Difference]: Start difference. First operand has 776 places, 914 transitions, 27496 flow. Second operand 7 states and 228 transitions. [2021-03-25 07:58:23,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 782 places, 919 transitions, 29754 flow [2021-03-25 07:58:25,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 769 places, 919 transitions, 29514 flow, removed 41 selfloop flow, removed 13 redundant places. [2021-03-25 07:58:25,840 INFO L241 Difference]: Finished difference. Result has 772 places, 915 transitions, 27582 flow [2021-03-25 07:58:25,840 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=27272, PETRI_DIFFERENCE_MINUEND_PLACES=763, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=914, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=856, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27582, PETRI_PLACES=772, PETRI_TRANSITIONS=915} [2021-03-25 07:58:25,840 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 741 predicate places. [2021-03-25 07:58:25,840 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:25,840 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 772 places, 915 transitions, 27582 flow [2021-03-25 07:58:25,841 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 772 places, 915 transitions, 27582 flow [2021-03-25 07:58:25,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 772 places, 915 transitions, 27582 flow [2021-03-25 07:58:26,184 INFO L129 PetriNetUnfolder]: 470/1108 cut-off events. [2021-03-25 07:58:26,184 INFO L130 PetriNetUnfolder]: For 127571/127598 co-relation queries the response was YES. [2021-03-25 07:58:26,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17087 conditions, 1108 events. 470/1108 cut-off events. For 127571/127598 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 8421 event pairs, 0 based on Foata normal form. 8/1116 useless extension candidates. Maximal degree in co-relation 16706. Up to 321 conditions per place. [2021-03-25 07:58:26,227 INFO L142 LiptonReduction]: Number of co-enabled transitions 1122 [2021-03-25 07:58:26,327 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:26,328 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:26,328 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 488 [2021-03-25 07:58:26,328 INFO L480 AbstractCegarLoop]: Abstraction has has 772 places, 915 transitions, 27582 flow [2021-03-25 07:58:26,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:26,328 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:26,328 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:26,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-03-25 07:58:26,328 INFO L428 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:26,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:26,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1611337874, now seen corresponding path program 5 times [2021-03-25 07:58:26,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:26,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605816825] [2021-03-25 07:58:26,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:26,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:26,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:26,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:26,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:26,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:26,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:26,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:26,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:26,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:26,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:26,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:26,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:26,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:26,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:26,372 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:26,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:26,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605816825] [2021-03-25 07:58:26,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:26,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:58:26,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170808651] [2021-03-25 07:58:26,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:58:26,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:26,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:58:26,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:58:26,375 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2021-03-25 07:58:26,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 772 places, 915 transitions, 27582 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:26,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:26,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2021-03-25 07:58:26,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:27,244 INFO L129 PetriNetUnfolder]: 567/1274 cut-off events. [2021-03-25 07:58:27,244 INFO L130 PetriNetUnfolder]: For 151095/151101 co-relation queries the response was YES. [2021-03-25 07:58:27,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20924 conditions, 1274 events. 567/1274 cut-off events. For 151095/151101 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 9378 event pairs, 50 based on Foata normal form. 7/1281 useless extension candidates. Maximal degree in co-relation 20428. Up to 1067 conditions per place. [2021-03-25 07:58:27,281 INFO L132 encePairwiseOnDemand]: 64/73 looper letters, 811 selfloop transitions, 105 changer transitions 2/923 dead transitions. [2021-03-25 07:58:27,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 779 places, 923 transitions, 29905 flow [2021-03-25 07:58:27,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:58:27,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:58:27,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 261 transitions. [2021-03-25 07:58:27,282 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4469178082191781 [2021-03-25 07:58:27,282 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 261 transitions. [2021-03-25 07:58:27,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 261 transitions. [2021-03-25 07:58:27,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:27,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 261 transitions. [2021-03-25 07:58:27,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:27,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:27,283 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:27,283 INFO L185 Difference]: Start difference. First operand has 772 places, 915 transitions, 27582 flow. Second operand 8 states and 261 transitions. [2021-03-25 07:58:27,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 779 places, 923 transitions, 29905 flow [2021-03-25 07:58:28,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 776 places, 923 transitions, 29709 flow, removed 62 selfloop flow, removed 3 redundant places. [2021-03-25 07:58:28,837 INFO L241 Difference]: Finished difference. Result has 779 places, 917 transitions, 27873 flow [2021-03-25 07:58:28,838 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=27386, PETRI_DIFFERENCE_MINUEND_PLACES=769, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=915, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=810, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=27873, PETRI_PLACES=779, PETRI_TRANSITIONS=917} [2021-03-25 07:58:28,838 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 748 predicate places. [2021-03-25 07:58:28,838 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:28,838 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 779 places, 917 transitions, 27873 flow [2021-03-25 07:58:28,838 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 779 places, 917 transitions, 27873 flow [2021-03-25 07:58:28,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 779 places, 917 transitions, 27873 flow [2021-03-25 07:58:29,178 INFO L129 PetriNetUnfolder]: 470/1110 cut-off events. [2021-03-25 07:58:29,178 INFO L130 PetriNetUnfolder]: For 121886/121923 co-relation queries the response was YES. [2021-03-25 07:58:29,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17236 conditions, 1110 events. 470/1110 cut-off events. For 121886/121923 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 8479 event pairs, 2 based on Foata normal form. 10/1120 useless extension candidates. Maximal degree in co-relation 16853. Up to 322 conditions per place. [2021-03-25 07:58:29,220 INFO L142 LiptonReduction]: Number of co-enabled transitions 1126 [2021-03-25 07:58:29,321 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:29,322 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:29,322 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 484 [2021-03-25 07:58:29,322 INFO L480 AbstractCegarLoop]: Abstraction has has 779 places, 917 transitions, 27873 flow [2021-03-25 07:58:29,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:29,322 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:29,322 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:29,322 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-03-25 07:58:29,322 INFO L428 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:29,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:29,323 INFO L82 PathProgramCache]: Analyzing trace with hash 481473479, now seen corresponding path program 4 times [2021-03-25 07:58:29,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:29,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002727357] [2021-03-25 07:58:29,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:29,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:29,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:29,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:29,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:29,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:29,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:29,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:29,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:29,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:29,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:29,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:29,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:29,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:29,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:29,357 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:29,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:29,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:29,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002727357] [2021-03-25 07:58:29,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:29,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:58:29,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682198339] [2021-03-25 07:58:29,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:58:29,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:29,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:58:29,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:58:29,360 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2021-03-25 07:58:29,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 917 transitions, 27873 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:29,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:29,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2021-03-25 07:58:29,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:30,200 INFO L129 PetriNetUnfolder]: 570/1279 cut-off events. [2021-03-25 07:58:30,200 INFO L130 PetriNetUnfolder]: For 141218/141220 co-relation queries the response was YES. [2021-03-25 07:58:30,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21198 conditions, 1279 events. 570/1279 cut-off events. For 141218/141220 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 9414 event pairs, 1 based on Foata normal form. 3/1282 useless extension candidates. Maximal degree in co-relation 20812. Up to 1103 conditions per place. [2021-03-25 07:58:30,227 INFO L132 encePairwiseOnDemand]: 64/73 looper letters, 866 selfloop transitions, 47 changer transitions 4/922 dead transitions. [2021-03-25 07:58:30,228 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 785 places, 922 transitions, 29861 flow [2021-03-25 07:58:30,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:58:30,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:58:30,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2021-03-25 07:58:30,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4500978473581213 [2021-03-25 07:58:30,229 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 230 transitions. [2021-03-25 07:58:30,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 230 transitions. [2021-03-25 07:58:30,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:30,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 230 transitions. [2021-03-25 07:58:30,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.857142857142854) internal successors, (230), 7 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:30,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 73.0) internal successors, (584), 8 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:30,229 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 73.0) internal successors, (584), 8 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:30,229 INFO L185 Difference]: Start difference. First operand has 779 places, 917 transitions, 27873 flow. Second operand 7 states and 230 transitions. [2021-03-25 07:58:30,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 785 places, 922 transitions, 29861 flow [2021-03-25 07:58:31,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 780 places, 922 transitions, 29587 flow, removed 65 selfloop flow, removed 5 redundant places. [2021-03-25 07:58:31,918 INFO L241 Difference]: Finished difference. Result has 782 places, 914 transitions, 27624 flow [2021-03-25 07:58:31,918 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=27601, PETRI_DIFFERENCE_MINUEND_PLACES=774, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=917, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=870, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27624, PETRI_PLACES=782, PETRI_TRANSITIONS=914} [2021-03-25 07:58:31,918 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 751 predicate places. [2021-03-25 07:58:31,918 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:31,918 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 782 places, 914 transitions, 27624 flow [2021-03-25 07:58:31,918 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 782 places, 914 transitions, 27624 flow [2021-03-25 07:58:31,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 782 places, 914 transitions, 27624 flow [2021-03-25 07:58:32,279 INFO L129 PetriNetUnfolder]: 469/1111 cut-off events. [2021-03-25 07:58:32,279 INFO L130 PetriNetUnfolder]: For 117128/117142 co-relation queries the response was YES. [2021-03-25 07:58:32,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17105 conditions, 1111 events. 469/1111 cut-off events. For 117128/117142 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 8562 event pairs, 2 based on Foata normal form. 8/1119 useless extension candidates. Maximal degree in co-relation 16720. Up to 321 conditions per place. [2021-03-25 07:58:32,338 INFO L142 LiptonReduction]: Number of co-enabled transitions 1126 [2021-03-25 07:58:32,450 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:32,450 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:32,450 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 532 [2021-03-25 07:58:32,450 INFO L480 AbstractCegarLoop]: Abstraction has has 782 places, 914 transitions, 27624 flow [2021-03-25 07:58:32,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:32,450 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:32,451 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:32,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-03-25 07:58:32,451 INFO L428 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:32,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:32,451 INFO L82 PathProgramCache]: Analyzing trace with hash 603375909, now seen corresponding path program 5 times [2021-03-25 07:58:32,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:32,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595461493] [2021-03-25 07:58:32,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:32,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:32,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:32,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:32,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:32,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:32,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:32,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:32,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:32,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:32,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:32,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:32,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:32,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:32,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:32,488 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:32,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:32,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:32,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595461493] [2021-03-25 07:58:32,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:32,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:58:32,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858361748] [2021-03-25 07:58:32,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:58:32,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:32,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:58:32,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:58:32,491 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2021-03-25 07:58:32,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 782 places, 914 transitions, 27624 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:32,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:32,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2021-03-25 07:58:32,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:33,313 INFO L129 PetriNetUnfolder]: 569/1279 cut-off events. [2021-03-25 07:58:33,313 INFO L130 PetriNetUnfolder]: For 138067/138067 co-relation queries the response was YES. [2021-03-25 07:58:33,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21113 conditions, 1279 events. 569/1279 cut-off events. For 138067/138067 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 9401 event pairs, 0 based on Foata normal form. 1/1280 useless extension candidates. Maximal degree in co-relation 20725. Up to 1092 conditions per place. [2021-03-25 07:58:33,345 INFO L132 encePairwiseOnDemand]: 64/73 looper letters, 842 selfloop transitions, 70 changer transitions 3/920 dead transitions. [2021-03-25 07:58:33,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 788 places, 920 transitions, 29690 flow [2021-03-25 07:58:33,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:58:33,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:58:33,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 229 transitions. [2021-03-25 07:58:33,346 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4481409001956947 [2021-03-25 07:58:33,346 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 229 transitions. [2021-03-25 07:58:33,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 229 transitions. [2021-03-25 07:58:33,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:33,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 229 transitions. [2021-03-25 07:58:33,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.714285714285715) internal successors, (229), 7 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:33,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 73.0) internal successors, (584), 8 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:33,347 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 73.0) internal successors, (584), 8 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:33,347 INFO L185 Difference]: Start difference. First operand has 782 places, 914 transitions, 27624 flow. Second operand 7 states and 229 transitions. [2021-03-25 07:58:33,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 788 places, 920 transitions, 29690 flow [2021-03-25 07:58:34,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 779 places, 920 transitions, 29581 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-03-25 07:58:34,914 INFO L241 Difference]: Finished difference. Result has 781 places, 914 transitions, 27743 flow [2021-03-25 07:58:34,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=27515, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=914, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=844, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27743, PETRI_PLACES=781, PETRI_TRANSITIONS=914} [2021-03-25 07:58:34,915 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 750 predicate places. [2021-03-25 07:58:34,915 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:34,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 781 places, 914 transitions, 27743 flow [2021-03-25 07:58:34,915 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 781 places, 914 transitions, 27743 flow [2021-03-25 07:58:34,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 781 places, 914 transitions, 27743 flow [2021-03-25 07:58:35,244 INFO L129 PetriNetUnfolder]: 468/1113 cut-off events. [2021-03-25 07:58:35,244 INFO L130 PetriNetUnfolder]: For 119290/119311 co-relation queries the response was YES. [2021-03-25 07:58:35,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17134 conditions, 1113 events. 468/1113 cut-off events. For 119290/119311 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 8552 event pairs, 1 based on Foata normal form. 10/1123 useless extension candidates. Maximal degree in co-relation 16750. Up to 322 conditions per place. [2021-03-25 07:58:35,287 INFO L142 LiptonReduction]: Number of co-enabled transitions 1124 [2021-03-25 07:58:35,383 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:35,383 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:35,384 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 469 [2021-03-25 07:58:35,384 INFO L480 AbstractCegarLoop]: Abstraction has has 781 places, 914 transitions, 27743 flow [2021-03-25 07:58:35,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:35,384 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:35,384 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:35,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-03-25 07:58:35,384 INFO L428 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:35,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:35,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1824754892, now seen corresponding path program 6 times [2021-03-25 07:58:35,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:35,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466149735] [2021-03-25 07:58:35,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:35,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:35,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:35,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:35,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:35,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:35,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:35,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:35,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:35,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:35,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:35,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:35,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:35,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:35,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:35,442 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:35,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:35,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:35,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466149735] [2021-03-25 07:58:35,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:35,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:58:35,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177879926] [2021-03-25 07:58:35,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:58:35,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:35,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:58:35,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:58:35,446 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2021-03-25 07:58:35,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 781 places, 914 transitions, 27743 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:35,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:35,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2021-03-25 07:58:35,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:36,321 INFO L129 PetriNetUnfolder]: 564/1270 cut-off events. [2021-03-25 07:58:36,322 INFO L130 PetriNetUnfolder]: For 145430/145436 co-relation queries the response was YES. [2021-03-25 07:58:36,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20806 conditions, 1270 events. 564/1270 cut-off events. For 145430/145436 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 9352 event pairs, 62 based on Foata normal form. 7/1277 useless extension candidates. Maximal degree in co-relation 20305. Up to 1084 conditions per place. [2021-03-25 07:58:36,350 INFO L132 encePairwiseOnDemand]: 64/73 looper letters, 851 selfloop transitions, 60 changer transitions 3/919 dead transitions. [2021-03-25 07:58:36,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 788 places, 919 transitions, 29721 flow [2021-03-25 07:58:36,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:58:36,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:58:36,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 261 transitions. [2021-03-25 07:58:36,351 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4469178082191781 [2021-03-25 07:58:36,352 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 261 transitions. [2021-03-25 07:58:36,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 261 transitions. [2021-03-25 07:58:36,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:36,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 261 transitions. [2021-03-25 07:58:36,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:36,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:36,352 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:36,352 INFO L185 Difference]: Start difference. First operand has 781 places, 914 transitions, 27743 flow. Second operand 8 states and 261 transitions. [2021-03-25 07:58:36,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 788 places, 919 transitions, 29721 flow [2021-03-25 07:58:38,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 787 places, 919 transitions, 29678 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 07:58:38,026 INFO L241 Difference]: Finished difference. Result has 789 places, 912 transitions, 27804 flow [2021-03-25 07:58:38,027 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=27700, PETRI_DIFFERENCE_MINUEND_PLACES=780, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=914, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=854, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=27804, PETRI_PLACES=789, PETRI_TRANSITIONS=912} [2021-03-25 07:58:38,027 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 758 predicate places. [2021-03-25 07:58:38,027 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:38,027 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 789 places, 912 transitions, 27804 flow [2021-03-25 07:58:38,027 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 789 places, 912 transitions, 27804 flow [2021-03-25 07:58:38,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 789 places, 912 transitions, 27804 flow [2021-03-25 07:58:38,368 INFO L129 PetriNetUnfolder]: 467/1090 cut-off events. [2021-03-25 07:58:38,368 INFO L130 PetriNetUnfolder]: For 122571/122598 co-relation queries the response was YES. [2021-03-25 07:58:38,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17137 conditions, 1090 events. 467/1090 cut-off events. For 122571/122598 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 8297 event pairs, 2 based on Foata normal form. 8/1098 useless extension candidates. Maximal degree in co-relation 16750. Up to 322 conditions per place. [2021-03-25 07:58:38,407 INFO L142 LiptonReduction]: Number of co-enabled transitions 1124 [2021-03-25 07:58:38,501 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:38,501 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:38,501 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 474 [2021-03-25 07:58:38,501 INFO L480 AbstractCegarLoop]: Abstraction has has 789 places, 912 transitions, 27804 flow [2021-03-25 07:58:38,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:38,502 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:38,502 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:38,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-03-25 07:58:38,502 INFO L428 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:38,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:38,502 INFO L82 PathProgramCache]: Analyzing trace with hash -263229019, now seen corresponding path program 6 times [2021-03-25 07:58:38,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:38,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944439191] [2021-03-25 07:58:38,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:38,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:38,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:38,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:38,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:38,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:38,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:38,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:38,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:38,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:38,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:38,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:38,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:38,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:38,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:38,543 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:38,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:38,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:38,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944439191] [2021-03-25 07:58:38,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:38,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:58:38,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275764777] [2021-03-25 07:58:38,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:58:38,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:38,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:58:38,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:58:38,546 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2021-03-25 07:58:38,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 789 places, 912 transitions, 27804 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:38,547 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:38,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2021-03-25 07:58:38,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:39,355 INFO L129 PetriNetUnfolder]: 568/1278 cut-off events. [2021-03-25 07:58:39,355 INFO L130 PetriNetUnfolder]: For 143698/143700 co-relation queries the response was YES. [2021-03-25 07:58:39,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21331 conditions, 1278 events. 568/1278 cut-off events. For 143698/143700 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 9388 event pairs, 0 based on Foata normal form. 3/1281 useless extension candidates. Maximal degree in co-relation 20941. Up to 1073 conditions per place. [2021-03-25 07:58:39,386 INFO L132 encePairwiseOnDemand]: 64/73 looper letters, 810 selfloop transitions, 100 changer transitions 5/920 dead transitions. [2021-03-25 07:58:39,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 796 places, 920 transitions, 30190 flow [2021-03-25 07:58:39,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:58:39,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:58:39,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 261 transitions. [2021-03-25 07:58:39,387 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4469178082191781 [2021-03-25 07:58:39,387 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 261 transitions. [2021-03-25 07:58:39,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 261 transitions. [2021-03-25 07:58:39,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:39,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 261 transitions. [2021-03-25 07:58:39,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:39,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:39,388 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:39,388 INFO L185 Difference]: Start difference. First operand has 789 places, 912 transitions, 27804 flow. Second operand 8 states and 261 transitions. [2021-03-25 07:58:39,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 796 places, 920 transitions, 30190 flow [2021-03-25 07:58:41,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 787 places, 920 transitions, 30027 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-03-25 07:58:41,041 INFO L241 Difference]: Finished difference. Result has 791 places, 911 transitions, 27945 flow [2021-03-25 07:58:41,041 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=27645, PETRI_DIFFERENCE_MINUEND_PLACES=780, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=912, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=812, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=27945, PETRI_PLACES=791, PETRI_TRANSITIONS=911} [2021-03-25 07:58:41,041 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 760 predicate places. [2021-03-25 07:58:41,041 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:41,041 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 791 places, 911 transitions, 27945 flow [2021-03-25 07:58:41,041 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 791 places, 911 transitions, 27945 flow [2021-03-25 07:58:41,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 791 places, 911 transitions, 27945 flow [2021-03-25 07:58:41,366 INFO L129 PetriNetUnfolder]: 466/1114 cut-off events. [2021-03-25 07:58:41,366 INFO L130 PetriNetUnfolder]: For 123592/123629 co-relation queries the response was YES. [2021-03-25 07:58:41,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17270 conditions, 1114 events. 466/1114 cut-off events. For 123592/123629 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 8586 event pairs, 0 based on Foata normal form. 10/1124 useless extension candidates. Maximal degree in co-relation 16881. Up to 322 conditions per place. [2021-03-25 07:58:41,406 INFO L142 LiptonReduction]: Number of co-enabled transitions 1124 [2021-03-25 07:58:41,495 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:41,496 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:41,496 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 455 [2021-03-25 07:58:41,496 INFO L480 AbstractCegarLoop]: Abstraction has has 791 places, 911 transitions, 27945 flow [2021-03-25 07:58:41,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:41,496 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:41,496 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:41,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-03-25 07:58:41,496 INFO L428 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:41,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:41,496 INFO L82 PathProgramCache]: Analyzing trace with hash 95707558, now seen corresponding path program 7 times [2021-03-25 07:58:41,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:41,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246569458] [2021-03-25 07:58:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:41,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:41,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:41,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:41,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:41,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:41,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:41,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:41,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:41,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:41,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:41,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:41,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:41,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:41,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:41,567 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:41,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:41,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:41,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246569458] [2021-03-25 07:58:41,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:41,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:58:41,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456591275] [2021-03-25 07:58:41,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:58:41,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:41,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:58:41,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:58:41,571 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2021-03-25 07:58:41,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 791 places, 911 transitions, 27945 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:41,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:41,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2021-03-25 07:58:41,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:42,401 INFO L129 PetriNetUnfolder]: 562/1262 cut-off events. [2021-03-25 07:58:42,401 INFO L130 PetriNetUnfolder]: For 136498/136500 co-relation queries the response was YES. [2021-03-25 07:58:42,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20938 conditions, 1262 events. 562/1262 cut-off events. For 136498/136500 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 9297 event pairs, 0 based on Foata normal form. 3/1265 useless extension candidates. Maximal degree in co-relation 20431. Up to 1063 conditions per place. [2021-03-25 07:58:42,431 INFO L132 encePairwiseOnDemand]: 64/73 looper letters, 808 selfloop transitions, 97 changer transitions 5/915 dead transitions. [2021-03-25 07:58:42,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 798 places, 915 transitions, 29915 flow [2021-03-25 07:58:42,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:58:42,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:58:42,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 260 transitions. [2021-03-25 07:58:42,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4452054794520548 [2021-03-25 07:58:42,432 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 260 transitions. [2021-03-25 07:58:42,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 260 transitions. [2021-03-25 07:58:42,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:42,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 260 transitions. [2021-03-25 07:58:42,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:42,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:42,432 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:42,433 INFO L185 Difference]: Start difference. First operand has 791 places, 911 transitions, 27945 flow. Second operand 8 states and 260 transitions. [2021-03-25 07:58:42,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 798 places, 915 transitions, 29915 flow [2021-03-25 07:58:44,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 788 places, 915 transitions, 29621 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-03-25 07:58:44,082 INFO L241 Difference]: Finished difference. Result has 790 places, 907 transitions, 27810 flow [2021-03-25 07:58:44,083 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=27655, PETRI_DIFFERENCE_MINUEND_PLACES=781, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=911, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=814, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=27810, PETRI_PLACES=790, PETRI_TRANSITIONS=907} [2021-03-25 07:58:44,083 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 759 predicate places. [2021-03-25 07:58:44,083 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:44,083 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 790 places, 907 transitions, 27810 flow [2021-03-25 07:58:44,083 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 790 places, 907 transitions, 27810 flow [2021-03-25 07:58:44,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 790 places, 907 transitions, 27810 flow [2021-03-25 07:58:44,416 INFO L129 PetriNetUnfolder]: 465/1100 cut-off events. [2021-03-25 07:58:44,417 INFO L130 PetriNetUnfolder]: For 120026/120026 co-relation queries the response was YES. [2021-03-25 07:58:44,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17148 conditions, 1100 events. 465/1100 cut-off events. For 120026/120026 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 8417 event pairs, 1 based on Foata normal form. 0/1100 useless extension candidates. Maximal degree in co-relation 16761. Up to 322 conditions per place. [2021-03-25 07:58:44,458 INFO L142 LiptonReduction]: Number of co-enabled transitions 1124 [2021-03-25 07:58:44,552 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:44,552 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:44,552 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 469 [2021-03-25 07:58:44,553 INFO L480 AbstractCegarLoop]: Abstraction has has 790 places, 907 transitions, 27810 flow [2021-03-25 07:58:44,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:44,553 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:44,553 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:44,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-03-25 07:58:44,553 INFO L428 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:44,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:44,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1477116589, now seen corresponding path program 7 times [2021-03-25 07:58:44,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:44,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220844017] [2021-03-25 07:58:44,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:44,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:44,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:44,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:44,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:44,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:44,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:44,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:44,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:44,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:44,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:44,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:44,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:44,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:44,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:44,599 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:44,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:44,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:44,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220844017] [2021-03-25 07:58:44,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:44,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:58:44,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078118845] [2021-03-25 07:58:44,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:58:44,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:44,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:58:44,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:58:44,602 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2021-03-25 07:58:44,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 790 places, 907 transitions, 27810 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:44,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:44,603 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2021-03-25 07:58:44,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:45,425 INFO L129 PetriNetUnfolder]: 566/1271 cut-off events. [2021-03-25 07:58:45,425 INFO L130 PetriNetUnfolder]: For 140275/140275 co-relation queries the response was YES. [2021-03-25 07:58:45,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21261 conditions, 1271 events. 566/1271 cut-off events. For 140275/140275 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 9316 event pairs, 0 based on Foata normal form. 1/1272 useless extension candidates. Maximal degree in co-relation 20871. Up to 1063 conditions per place. [2021-03-25 07:58:45,458 INFO L132 encePairwiseOnDemand]: 64/73 looper letters, 800 selfloop transitions, 104 changer transitions 5/914 dead transitions. [2021-03-25 07:58:45,459 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 797 places, 914 transitions, 30072 flow [2021-03-25 07:58:45,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:58:45,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:58:45,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 260 transitions. [2021-03-25 07:58:45,460 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4452054794520548 [2021-03-25 07:58:45,460 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 260 transitions. [2021-03-25 07:58:45,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 260 transitions. [2021-03-25 07:58:45,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:45,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 260 transitions. [2021-03-25 07:58:45,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:45,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:45,460 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:45,461 INFO L185 Difference]: Start difference. First operand has 790 places, 907 transitions, 27810 flow. Second operand 8 states and 260 transitions. [2021-03-25 07:58:45,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 797 places, 914 transitions, 30072 flow [2021-03-25 07:58:47,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 781 places, 914 transitions, 29726 flow, removed 8 selfloop flow, removed 16 redundant places. [2021-03-25 07:58:47,222 INFO L241 Difference]: Finished difference. Result has 784 places, 905 transitions, 27828 flow [2021-03-25 07:58:47,222 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=27468, PETRI_DIFFERENCE_MINUEND_PLACES=774, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=907, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=803, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=27828, PETRI_PLACES=784, PETRI_TRANSITIONS=905} [2021-03-25 07:58:47,222 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 753 predicate places. [2021-03-25 07:58:47,222 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:47,222 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 784 places, 905 transitions, 27828 flow [2021-03-25 07:58:47,222 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 784 places, 905 transitions, 27828 flow [2021-03-25 07:58:47,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 784 places, 905 transitions, 27828 flow [2021-03-25 07:58:47,578 INFO L129 PetriNetUnfolder]: 464/1094 cut-off events. [2021-03-25 07:58:47,579 INFO L130 PetriNetUnfolder]: For 120838/120859 co-relation queries the response was YES. [2021-03-25 07:58:47,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17164 conditions, 1094 events. 464/1094 cut-off events. For 120838/120859 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 8342 event pairs, 1 based on Foata normal form. 10/1104 useless extension candidates. Maximal degree in co-relation 16777. Up to 322 conditions per place. [2021-03-25 07:58:47,623 INFO L142 LiptonReduction]: Number of co-enabled transitions 1124 [2021-03-25 07:58:47,859 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:47,859 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:58:47,859 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 637 [2021-03-25 07:58:47,859 INFO L480 AbstractCegarLoop]: Abstraction has has 784 places, 905 transitions, 27856 flow [2021-03-25 07:58:47,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:47,860 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:47,860 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:47,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-03-25 07:58:47,860 INFO L428 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:47,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:47,860 INFO L82 PathProgramCache]: Analyzing trace with hash -528646841, now seen corresponding path program 8 times [2021-03-25 07:58:47,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:47,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058893741] [2021-03-25 07:58:47,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:47,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:47,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:47,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:47,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:47,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:47,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:47,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:47,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:47,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:47,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:47,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:47,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:47,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:47,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:47,904 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:47,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:47,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058893741] [2021-03-25 07:58:47,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:47,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:58:47,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197837381] [2021-03-25 07:58:47,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:58:47,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:47,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:58:47,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:58:47,907 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:58:47,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 784 places, 905 transitions, 27856 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:47,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:47,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:58:47,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:48,781 INFO L129 PetriNetUnfolder]: 564/1269 cut-off events. [2021-03-25 07:58:48,781 INFO L130 PetriNetUnfolder]: For 133816/133816 co-relation queries the response was YES. [2021-03-25 07:58:48,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21183 conditions, 1269 events. 564/1269 cut-off events. For 133816/133816 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 9333 event pairs, 6 based on Foata normal form. 1/1269 useless extension candidates. Maximal degree in co-relation 20793. Up to 1055 conditions per place. [2021-03-25 07:58:48,813 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 817 selfloop transitions, 84 changer transitions 7/913 dead transitions. [2021-03-25 07:58:48,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 791 places, 913 transitions, 29882 flow [2021-03-25 07:58:48,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:58:48,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:58:48,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:58:48,814 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44425675675675674 [2021-03-25 07:58:48,814 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:58:48,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:58:48,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:48,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:58:48,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:48,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:48,815 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:48,815 INFO L185 Difference]: Start difference. First operand has 784 places, 905 transitions, 27856 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:58:48,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 791 places, 913 transitions, 29882 flow [2021-03-25 07:58:50,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 781 places, 913 transitions, 29483 flow, removed 76 selfloop flow, removed 10 redundant places. [2021-03-25 07:58:50,625 INFO L241 Difference]: Finished difference. Result has 783 places, 900 transitions, 27488 flow [2021-03-25 07:58:50,625 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=27464, PETRI_DIFFERENCE_MINUEND_PLACES=774, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=905, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=821, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=27488, PETRI_PLACES=783, PETRI_TRANSITIONS=900} [2021-03-25 07:58:50,626 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 752 predicate places. [2021-03-25 07:58:50,626 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:50,626 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 783 places, 900 transitions, 27488 flow [2021-03-25 07:58:50,626 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 783 places, 900 transitions, 27488 flow [2021-03-25 07:58:50,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 783 places, 900 transitions, 27488 flow [2021-03-25 07:58:50,967 INFO L129 PetriNetUnfolder]: 462/1089 cut-off events. [2021-03-25 07:58:50,967 INFO L130 PetriNetUnfolder]: For 117630/117652 co-relation queries the response was YES. [2021-03-25 07:58:50,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16969 conditions, 1089 events. 462/1089 cut-off events. For 117630/117652 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 8314 event pairs, 2 based on Foata normal form. 10/1099 useless extension candidates. Maximal degree in co-relation 16583. Up to 321 conditions per place. [2021-03-25 07:58:51,010 INFO L142 LiptonReduction]: Number of co-enabled transitions 1126 [2021-03-25 07:58:51,105 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:51,106 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:51,106 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 480 [2021-03-25 07:58:51,106 INFO L480 AbstractCegarLoop]: Abstraction has has 783 places, 900 transitions, 27488 flow [2021-03-25 07:58:51,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:51,106 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:51,106 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:51,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-03-25 07:58:51,106 INFO L428 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:51,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:51,107 INFO L82 PathProgramCache]: Analyzing trace with hash 733034378, now seen corresponding path program 1 times [2021-03-25 07:58:51,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:51,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398258271] [2021-03-25 07:58:51,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:51,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:51,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:51,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:51,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:51,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:51,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:51,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:51,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:51,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:51,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:58:51,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:51,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:51,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:51,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:51,150 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:51,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:51,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398258271] [2021-03-25 07:58:51,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:51,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:58:51,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057910674] [2021-03-25 07:58:51,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:58:51,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:51,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:58:51,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:58:51,153 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:58:51,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 783 places, 900 transitions, 27488 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:51,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:51,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:58:51,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:51,983 INFO L129 PetriNetUnfolder]: 567/1272 cut-off events. [2021-03-25 07:58:51,983 INFO L130 PetriNetUnfolder]: For 154565/154565 co-relation queries the response was YES. [2021-03-25 07:58:52,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21652 conditions, 1272 events. 567/1272 cut-off events. For 154565/154565 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 9319 event pairs, 1 based on Foata normal form. 1/1273 useless extension candidates. Maximal degree in co-relation 21148. Up to 1086 conditions per place. [2021-03-25 07:58:52,016 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 852 selfloop transitions, 50 changer transitions 8/915 dead transitions. [2021-03-25 07:58:52,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 790 places, 915 transitions, 30628 flow [2021-03-25 07:58:52,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:58:52,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:58:52,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:58:52,017 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44256756756756754 [2021-03-25 07:58:52,017 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:58:52,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:58:52,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:52,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:58:52,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:52,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:52,018 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:52,018 INFO L185 Difference]: Start difference. First operand has 783 places, 900 transitions, 27488 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:58:52,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 790 places, 915 transitions, 30628 flow [2021-03-25 07:58:53,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 915 transitions, 30394 flow, removed 14 selfloop flow, removed 12 redundant places. [2021-03-25 07:58:53,792 INFO L241 Difference]: Finished difference. Result has 782 places, 901 transitions, 27982 flow [2021-03-25 07:58:53,792 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=27272, PETRI_DIFFERENCE_MINUEND_PLACES=771, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=852, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=27982, PETRI_PLACES=782, PETRI_TRANSITIONS=901} [2021-03-25 07:58:53,793 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 751 predicate places. [2021-03-25 07:58:53,793 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:53,793 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 782 places, 901 transitions, 27982 flow [2021-03-25 07:58:53,793 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 782 places, 901 transitions, 27982 flow [2021-03-25 07:58:53,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 782 places, 901 transitions, 27982 flow [2021-03-25 07:58:54,133 INFO L129 PetriNetUnfolder]: 462/1088 cut-off events. [2021-03-25 07:58:54,134 INFO L130 PetriNetUnfolder]: For 131895/131908 co-relation queries the response was YES. [2021-03-25 07:58:54,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17219 conditions, 1088 events. 462/1088 cut-off events. For 131895/131908 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 8275 event pairs, 0 based on Foata normal form. 8/1095 useless extension candidates. Maximal degree in co-relation 16832. Up to 322 conditions per place. [2021-03-25 07:58:54,175 INFO L142 LiptonReduction]: Number of co-enabled transitions 1130 [2021-03-25 07:58:54,269 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:54,269 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:54,269 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 476 [2021-03-25 07:58:54,269 INFO L480 AbstractCegarLoop]: Abstraction has has 782 places, 901 transitions, 27982 flow [2021-03-25 07:58:54,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:54,269 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:54,269 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:54,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-03-25 07:58:54,269 INFO L428 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:54,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:54,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1098886714, now seen corresponding path program 2 times [2021-03-25 07:58:54,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:54,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561691937] [2021-03-25 07:58:54,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:54,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:54,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:54,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:54,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:54,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:54,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:54,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:54,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:54,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:54,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:54,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:54,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:54,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:54,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:54,304 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:54,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:54,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:54,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561691937] [2021-03-25 07:58:54,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:54,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:58:54,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142738762] [2021-03-25 07:58:54,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:58:54,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:54,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:58:54,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:58:54,307 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:58:54,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 782 places, 901 transitions, 27982 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:54,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:54,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:58:54,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:55,090 INFO L129 PetriNetUnfolder]: 564/1267 cut-off events. [2021-03-25 07:58:55,090 INFO L130 PetriNetUnfolder]: For 154425/154425 co-relation queries the response was YES. [2021-03-25 07:58:55,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21467 conditions, 1267 events. 564/1267 cut-off events. For 154425/154425 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 9244 event pairs, 1 based on Foata normal form. 1/1268 useless extension candidates. Maximal degree in co-relation 20962. Up to 1087 conditions per place. [2021-03-25 07:58:55,122 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 852 selfloop transitions, 50 changer transitions 2/909 dead transitions. [2021-03-25 07:58:55,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 788 places, 909 transitions, 30264 flow [2021-03-25 07:58:55,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:58:55,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:58:55,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2021-03-25 07:58:55,124 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.444015444015444 [2021-03-25 07:58:55,124 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 230 transitions. [2021-03-25 07:58:55,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 230 transitions. [2021-03-25 07:58:55,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:55,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 230 transitions. [2021-03-25 07:58:55,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.857142857142854) internal successors, (230), 7 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:55,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:55,124 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:55,124 INFO L185 Difference]: Start difference. First operand has 782 places, 901 transitions, 27982 flow. Second operand 7 states and 230 transitions. [2021-03-25 07:58:55,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 788 places, 909 transitions, 30264 flow [2021-03-25 07:58:56,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 785 places, 909 transitions, 29632 flow, removed 302 selfloop flow, removed 3 redundant places. [2021-03-25 07:58:56,915 INFO L241 Difference]: Finished difference. Result has 788 places, 902 transitions, 27649 flow [2021-03-25 07:58:56,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=27350, PETRI_DIFFERENCE_MINUEND_PLACES=779, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=851, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27649, PETRI_PLACES=788, PETRI_TRANSITIONS=902} [2021-03-25 07:58:56,915 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 757 predicate places. [2021-03-25 07:58:56,915 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:58:56,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 788 places, 902 transitions, 27649 flow [2021-03-25 07:58:56,915 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 788 places, 902 transitions, 27649 flow [2021-03-25 07:58:56,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 788 places, 902 transitions, 27649 flow [2021-03-25 07:58:57,264 INFO L129 PetriNetUnfolder]: 462/1078 cut-off events. [2021-03-25 07:58:57,264 INFO L130 PetriNetUnfolder]: For 125205/125242 co-relation queries the response was YES. [2021-03-25 07:58:57,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17073 conditions, 1078 events. 462/1078 cut-off events. For 125205/125242 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 8201 event pairs, 0 based on Foata normal form. 10/1088 useless extension candidates. Maximal degree in co-relation 16683. Up to 320 conditions per place. [2021-03-25 07:58:57,307 INFO L142 LiptonReduction]: Number of co-enabled transitions 1132 [2021-03-25 07:58:57,398 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:58:57,398 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:58:57,399 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 484 [2021-03-25 07:58:57,399 INFO L480 AbstractCegarLoop]: Abstraction has has 788 places, 902 transitions, 27649 flow [2021-03-25 07:58:57,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:57,399 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:58:57,399 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:58:57,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-03-25 07:58:57,399 INFO L428 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:58:57,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:58:57,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1807110100, now seen corresponding path program 3 times [2021-03-25 07:58:57,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:58:57,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966477449] [2021-03-25 07:58:57,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:58:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:58:57,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:57,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:57,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:57,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:57,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:57,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:57,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:57,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:57,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:57,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:57,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:57,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:58:57,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:58:57,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:58:57,434 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:58:57,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:58:57,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:58:57,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966477449] [2021-03-25 07:58:57,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:58:57,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:58:57,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367634047] [2021-03-25 07:58:57,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:58:57,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:58:57,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:58:57,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:58:57,437 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:58:57,438 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 788 places, 902 transitions, 27649 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:57,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:58:57,438 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:58:57,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:58:58,272 INFO L129 PetriNetUnfolder]: 565/1274 cut-off events. [2021-03-25 07:58:58,273 INFO L130 PetriNetUnfolder]: For 152964/152964 co-relation queries the response was YES. [2021-03-25 07:58:58,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21557 conditions, 1274 events. 565/1274 cut-off events. For 152964/152964 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 9366 event pairs, 1 based on Foata normal form. 1/1275 useless extension candidates. Maximal degree in co-relation 21048. Up to 1085 conditions per place. [2021-03-25 07:58:58,308 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 845 selfloop transitions, 54 changer transitions 9/913 dead transitions. [2021-03-25 07:58:58,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 794 places, 913 transitions, 30347 flow [2021-03-25 07:58:58,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:58:58,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:58:58,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2021-03-25 07:58:58,309 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.444015444015444 [2021-03-25 07:58:58,309 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 230 transitions. [2021-03-25 07:58:58,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 230 transitions. [2021-03-25 07:58:58,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:58:58,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 230 transitions. [2021-03-25 07:58:58,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.857142857142854) internal successors, (230), 7 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:58,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:58,310 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:58:58,310 INFO L185 Difference]: Start difference. First operand has 788 places, 902 transitions, 27649 flow. Second operand 7 states and 230 transitions. [2021-03-25 07:58:58,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 794 places, 913 transitions, 30347 flow [2021-03-25 07:59:00,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 789 places, 913 transitions, 30121 flow, removed 64 selfloop flow, removed 5 redundant places. [2021-03-25 07:59:00,221 INFO L241 Difference]: Finished difference. Result has 794 places, 899 transitions, 27629 flow [2021-03-25 07:59:00,222 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=27423, PETRI_DIFFERENCE_MINUEND_PLACES=783, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=848, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27629, PETRI_PLACES=794, PETRI_TRANSITIONS=899} [2021-03-25 07:59:00,222 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 763 predicate places. [2021-03-25 07:59:00,222 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:00,222 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 794 places, 899 transitions, 27629 flow [2021-03-25 07:59:00,222 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 794 places, 899 transitions, 27629 flow [2021-03-25 07:59:00,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 794 places, 899 transitions, 27629 flow [2021-03-25 07:59:00,562 INFO L129 PetriNetUnfolder]: 460/1087 cut-off events. [2021-03-25 07:59:00,562 INFO L130 PetriNetUnfolder]: For 123184/123211 co-relation queries the response was YES. [2021-03-25 07:59:00,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17127 conditions, 1087 events. 460/1087 cut-off events. For 123184/123211 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 8293 event pairs, 1 based on Foata normal form. 8/1095 useless extension candidates. Maximal degree in co-relation 16733. Up to 319 conditions per place. [2021-03-25 07:59:00,603 INFO L142 LiptonReduction]: Number of co-enabled transitions 1128 [2021-03-25 07:59:00,694 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:00,694 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:00,695 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 473 [2021-03-25 07:59:00,695 INFO L480 AbstractCegarLoop]: Abstraction has has 794 places, 899 transitions, 27629 flow [2021-03-25 07:59:00,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:00,695 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:00,695 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:00,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-03-25 07:59:00,695 INFO L428 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:00,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:00,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1843589212, now seen corresponding path program 4 times [2021-03-25 07:59:00,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:00,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770871608] [2021-03-25 07:59:00,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:00,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:00,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:00,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:00,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:00,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:00,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:00,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:00,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:00,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:00,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:00,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:00,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:00,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:00,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:00,772 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:00,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:00,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:00,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770871608] [2021-03-25 07:59:00,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:00,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:59:00,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168490447] [2021-03-25 07:59:00,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:59:00,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:00,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:59:00,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:59:00,775 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:59:00,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 794 places, 899 transitions, 27629 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:00,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:00,776 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:59:00,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:01,565 INFO L129 PetriNetUnfolder]: 561/1263 cut-off events. [2021-03-25 07:59:01,565 INFO L130 PetriNetUnfolder]: For 148217/148217 co-relation queries the response was YES. [2021-03-25 07:59:01,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21255 conditions, 1263 events. 561/1263 cut-off events. For 148217/148217 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 9265 event pairs, 0 based on Foata normal form. 1/1264 useless extension candidates. Maximal degree in co-relation 20742. Up to 1063 conditions per place. [2021-03-25 07:59:01,598 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 815 selfloop transitions, 81 changer transitions 5/906 dead transitions. [2021-03-25 07:59:01,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 801 places, 906 transitions, 29642 flow [2021-03-25 07:59:01,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:59:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:59:01,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 261 transitions. [2021-03-25 07:59:01,599 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4408783783783784 [2021-03-25 07:59:01,599 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 261 transitions. [2021-03-25 07:59:01,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 261 transitions. [2021-03-25 07:59:01,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:01,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 261 transitions. [2021-03-25 07:59:01,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:01,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:01,600 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:01,600 INFO L185 Difference]: Start difference. First operand has 794 places, 899 transitions, 27629 flow. Second operand 8 states and 261 transitions. [2021-03-25 07:59:01,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 801 places, 906 transitions, 29642 flow [2021-03-25 07:59:03,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 792 places, 906 transitions, 29345 flow, removed 54 selfloop flow, removed 9 redundant places. [2021-03-25 07:59:03,515 INFO L241 Difference]: Finished difference. Result has 795 places, 896 transitions, 27494 flow [2021-03-25 07:59:03,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=27332, PETRI_DIFFERENCE_MINUEND_PLACES=785, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=899, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=818, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=27494, PETRI_PLACES=795, PETRI_TRANSITIONS=896} [2021-03-25 07:59:03,515 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 764 predicate places. [2021-03-25 07:59:03,515 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:03,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 795 places, 896 transitions, 27494 flow [2021-03-25 07:59:03,516 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 795 places, 896 transitions, 27494 flow [2021-03-25 07:59:03,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 795 places, 896 transitions, 27494 flow [2021-03-25 07:59:03,849 INFO L129 PetriNetUnfolder]: 458/1095 cut-off events. [2021-03-25 07:59:03,850 INFO L130 PetriNetUnfolder]: For 117788/117825 co-relation queries the response was YES. [2021-03-25 07:59:03,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17039 conditions, 1095 events. 458/1095 cut-off events. For 117788/117825 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 8440 event pairs, 3 based on Foata normal form. 10/1105 useless extension candidates. Maximal degree in co-relation 16646. Up to 319 conditions per place. [2021-03-25 07:59:03,890 INFO L142 LiptonReduction]: Number of co-enabled transitions 1120 [2021-03-25 07:59:03,979 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:03,979 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:03,979 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 464 [2021-03-25 07:59:03,980 INFO L480 AbstractCegarLoop]: Abstraction has has 795 places, 896 transitions, 27494 flow [2021-03-25 07:59:03,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:03,980 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:03,980 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:03,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-03-25 07:59:03,980 INFO L428 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:03,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:03,980 INFO L82 PathProgramCache]: Analyzing trace with hash -763094010, now seen corresponding path program 5 times [2021-03-25 07:59:03,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:03,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234035398] [2021-03-25 07:59:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:03,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:03,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:03,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:03,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:03,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:03,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:03,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:03,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:04,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:04,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:04,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:04,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:04,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:04,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:04,015 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:04,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:04,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234035398] [2021-03-25 07:59:04,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:04,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:59:04,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984494967] [2021-03-25 07:59:04,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:59:04,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:04,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:59:04,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:59:04,018 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:59:04,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 795 places, 896 transitions, 27494 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:04,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:04,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:59:04,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:04,847 INFO L129 PetriNetUnfolder]: 559/1262 cut-off events. [2021-03-25 07:59:04,847 INFO L130 PetriNetUnfolder]: For 147982/147982 co-relation queries the response was YES. [2021-03-25 07:59:04,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21219 conditions, 1262 events. 559/1262 cut-off events. For 147982/147982 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 9263 event pairs, 0 based on Foata normal form. 1/1263 useless extension candidates. Maximal degree in co-relation 20707. Up to 1080 conditions per place. [2021-03-25 07:59:04,884 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 852 selfloop transitions, 37 changer transitions 10/904 dead transitions. [2021-03-25 07:59:04,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 801 places, 904 transitions, 29632 flow [2021-03-25 07:59:04,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:59:04,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:59:04,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2021-03-25 07:59:04,885 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44594594594594594 [2021-03-25 07:59:04,885 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 231 transitions. [2021-03-25 07:59:04,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 231 transitions. [2021-03-25 07:59:04,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:04,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 231 transitions. [2021-03-25 07:59:04,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.0) internal successors, (231), 7 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:04,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:04,886 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:04,886 INFO L185 Difference]: Start difference. First operand has 795 places, 896 transitions, 27494 flow. Second operand 7 states and 231 transitions. [2021-03-25 07:59:04,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 801 places, 904 transitions, 29632 flow [2021-03-25 07:59:06,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 792 places, 904 transitions, 29427 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 07:59:06,885 INFO L241 Difference]: Finished difference. Result has 795 places, 888 transitions, 27006 flow [2021-03-25 07:59:06,886 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=27291, PETRI_DIFFERENCE_MINUEND_PLACES=786, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=896, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=859, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27006, PETRI_PLACES=795, PETRI_TRANSITIONS=888} [2021-03-25 07:59:06,886 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 764 predicate places. [2021-03-25 07:59:06,886 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:06,886 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 795 places, 888 transitions, 27006 flow [2021-03-25 07:59:06,886 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 795 places, 888 transitions, 27006 flow [2021-03-25 07:59:06,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 795 places, 888 transitions, 27006 flow [2021-03-25 07:59:07,247 INFO L129 PetriNetUnfolder]: 454/1074 cut-off events. [2021-03-25 07:59:07,248 INFO L130 PetriNetUnfolder]: For 120694/120731 co-relation queries the response was YES. [2021-03-25 07:59:07,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16786 conditions, 1074 events. 454/1074 cut-off events. For 120694/120731 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 8174 event pairs, 2 based on Foata normal form. 10/1084 useless extension candidates. Maximal degree in co-relation 16392. Up to 313 conditions per place. [2021-03-25 07:59:07,345 INFO L142 LiptonReduction]: Number of co-enabled transitions 1102 [2021-03-25 07:59:07,434 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:07,434 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:07,434 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 548 [2021-03-25 07:59:07,434 INFO L480 AbstractCegarLoop]: Abstraction has has 795 places, 888 transitions, 27006 flow [2021-03-25 07:59:07,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:07,435 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:07,435 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:07,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-03-25 07:59:07,435 INFO L428 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:07,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:07,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1477736876, now seen corresponding path program 6 times [2021-03-25 07:59:07,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:07,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120321286] [2021-03-25 07:59:07,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:07,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:07,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:07,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:07,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:07,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:07,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:07,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:07,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:07,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:07,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:07,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:07,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:07,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:07,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:07,492 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:07,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:07,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:07,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120321286] [2021-03-25 07:59:07,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:07,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:59:07,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970293349] [2021-03-25 07:59:07,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:59:07,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:07,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:59:07,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:59:07,495 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:59:07,496 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 795 places, 888 transitions, 27006 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:07,496 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:07,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:59:07,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:08,355 INFO L129 PetriNetUnfolder]: 555/1250 cut-off events. [2021-03-25 07:59:08,355 INFO L130 PetriNetUnfolder]: For 145999/145999 co-relation queries the response was YES. [2021-03-25 07:59:08,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20972 conditions, 1250 events. 555/1250 cut-off events. For 145999/145999 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 9175 event pairs, 2 based on Foata normal form. 1/1251 useless extension candidates. Maximal degree in co-relation 20459. Up to 1051 conditions per place. [2021-03-25 07:59:08,389 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 828 selfloop transitions, 51 changer transitions 13/897 dead transitions. [2021-03-25 07:59:08,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 802 places, 897 transitions, 29136 flow [2021-03-25 07:59:08,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:59:08,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:59:08,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 263 transitions. [2021-03-25 07:59:08,390 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44425675675675674 [2021-03-25 07:59:08,390 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 263 transitions. [2021-03-25 07:59:08,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 263 transitions. [2021-03-25 07:59:08,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:08,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 263 transitions. [2021-03-25 07:59:08,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.875) internal successors, (263), 8 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:08,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:08,391 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:08,391 INFO L185 Difference]: Start difference. First operand has 795 places, 888 transitions, 27006 flow. Second operand 8 states and 263 transitions. [2021-03-25 07:59:08,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 802 places, 897 transitions, 29136 flow [2021-03-25 07:59:10,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 790 places, 897 transitions, 28984 flow, removed 5 selfloop flow, removed 12 redundant places. [2021-03-25 07:59:10,153 INFO L241 Difference]: Finished difference. Result has 793 places, 877 transitions, 26502 flow [2021-03-25 07:59:10,153 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=26858, PETRI_DIFFERENCE_MINUEND_PLACES=783, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=888, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=26502, PETRI_PLACES=793, PETRI_TRANSITIONS=877} [2021-03-25 07:59:10,153 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 762 predicate places. [2021-03-25 07:59:10,153 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:10,153 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 793 places, 877 transitions, 26502 flow [2021-03-25 07:59:10,153 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 793 places, 877 transitions, 26502 flow [2021-03-25 07:59:10,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 793 places, 877 transitions, 26502 flow [2021-03-25 07:59:10,500 INFO L129 PetriNetUnfolder]: 450/1061 cut-off events. [2021-03-25 07:59:10,501 INFO L130 PetriNetUnfolder]: For 119503/119540 co-relation queries the response was YES. [2021-03-25 07:59:10,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16528 conditions, 1061 events. 450/1061 cut-off events. For 119503/119540 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 8066 event pairs, 2 based on Foata normal form. 10/1071 useless extension candidates. Maximal degree in co-relation 16136. Up to 309 conditions per place. [2021-03-25 07:59:10,543 INFO L142 LiptonReduction]: Number of co-enabled transitions 1080 [2021-03-25 07:59:10,632 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:10,632 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:10,632 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 479 [2021-03-25 07:59:10,633 INFO L480 AbstractCegarLoop]: Abstraction has has 793 places, 877 transitions, 26502 flow [2021-03-25 07:59:10,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:10,633 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:10,633 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:10,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-03-25 07:59:10,633 INFO L428 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:10,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:10,633 INFO L82 PathProgramCache]: Analyzing trace with hash 46785429, now seen corresponding path program 1 times [2021-03-25 07:59:10,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:10,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723830887] [2021-03-25 07:59:10,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:10,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:10,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:10,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:10,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:10,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:10,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:10,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:10,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:10,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:10,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:10,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:10,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:10,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:10,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:10,669 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:10,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:10,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:10,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723830887] [2021-03-25 07:59:10,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:10,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:59:10,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169356416] [2021-03-25 07:59:10,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:59:10,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:10,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:59:10,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:59:10,671 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:59:10,672 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 793 places, 877 transitions, 26502 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:10,672 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:10,672 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:59:10,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:11,441 INFO L129 PetriNetUnfolder]: 555/1247 cut-off events. [2021-03-25 07:59:11,442 INFO L130 PetriNetUnfolder]: For 152951/152951 co-relation queries the response was YES. [2021-03-25 07:59:11,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21148 conditions, 1247 events. 555/1247 cut-off events. For 152951/152951 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 9114 event pairs, 1 based on Foata normal form. 1/1248 useless extension candidates. Maximal degree in co-relation 20637. Up to 1073 conditions per place. [2021-03-25 07:59:11,474 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 837 selfloop transitions, 43 changer transitions 3/888 dead transitions. [2021-03-25 07:59:11,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 799 places, 888 transitions, 29444 flow [2021-03-25 07:59:11,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:59:11,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:59:11,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2021-03-25 07:59:11,475 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44015444015444016 [2021-03-25 07:59:11,475 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 228 transitions. [2021-03-25 07:59:11,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 228 transitions. [2021-03-25 07:59:11,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:11,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 228 transitions. [2021-03-25 07:59:11,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:11,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:11,476 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:11,476 INFO L185 Difference]: Start difference. First operand has 793 places, 877 transitions, 26502 flow. Second operand 7 states and 228 transitions. [2021-03-25 07:59:11,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 799 places, 888 transitions, 29444 flow [2021-03-25 07:59:13,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 888 transitions, 29140 flow, removed 23 selfloop flow, removed 21 redundant places. [2021-03-25 07:59:13,386 INFO L241 Difference]: Finished difference. Result has 782 places, 882 transitions, 27075 flow [2021-03-25 07:59:13,386 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=26226, PETRI_DIFFERENCE_MINUEND_PLACES=772, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=877, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=836, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27075, PETRI_PLACES=782, PETRI_TRANSITIONS=882} [2021-03-25 07:59:13,386 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 751 predicate places. [2021-03-25 07:59:13,387 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:13,387 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 782 places, 882 transitions, 27075 flow [2021-03-25 07:59:13,387 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 782 places, 882 transitions, 27075 flow [2021-03-25 07:59:13,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 782 places, 882 transitions, 27075 flow [2021-03-25 07:59:13,747 INFO L129 PetriNetUnfolder]: 452/1071 cut-off events. [2021-03-25 07:59:13,747 INFO L130 PetriNetUnfolder]: For 127606/127606 co-relation queries the response was YES. [2021-03-25 07:59:13,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16799 conditions, 1071 events. 452/1071 cut-off events. For 127606/127606 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 8170 event pairs, 1 based on Foata normal form. 0/1071 useless extension candidates. Maximal degree in co-relation 16413. Up to 311 conditions per place. [2021-03-25 07:59:13,781 INFO L142 LiptonReduction]: Number of co-enabled transitions 1092 [2021-03-25 07:59:13,863 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:13,863 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:13,863 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 476 [2021-03-25 07:59:13,863 INFO L480 AbstractCegarLoop]: Abstraction has has 782 places, 882 transitions, 27075 flow [2021-03-25 07:59:13,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:13,863 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:13,863 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:13,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-03-25 07:59:13,864 INFO L428 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:13,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:13,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1569907006, now seen corresponding path program 7 times [2021-03-25 07:59:13,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:13,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071694761] [2021-03-25 07:59:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:13,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:13,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:13,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:13,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:13,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:13,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:13,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:13,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:13,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:13,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:13,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:13,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:13,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:13,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:13,924 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:13,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:13,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:13,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071694761] [2021-03-25 07:59:13,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:13,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:59:13,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673562850] [2021-03-25 07:59:13,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:59:13,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:13,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:59:13,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:59:13,927 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:59:13,928 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 782 places, 882 transitions, 27075 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:13,928 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:13,928 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:59:13,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:14,728 INFO L129 PetriNetUnfolder]: 553/1244 cut-off events. [2021-03-25 07:59:14,728 INFO L130 PetriNetUnfolder]: For 143514/143514 co-relation queries the response was YES. [2021-03-25 07:59:14,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20863 conditions, 1244 events. 553/1244 cut-off events. For 143514/143514 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 9082 event pairs, 1 based on Foata normal form. 1/1245 useless extension candidates. Maximal degree in co-relation 20359. Up to 1053 conditions per place. [2021-03-25 07:59:14,761 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 806 selfloop transitions, 69 changer transitions 8/888 dead transitions. [2021-03-25 07:59:14,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 789 places, 888 transitions, 29023 flow [2021-03-25 07:59:14,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:59:14,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:59:14,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 261 transitions. [2021-03-25 07:59:14,762 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4408783783783784 [2021-03-25 07:59:14,762 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 261 transitions. [2021-03-25 07:59:14,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 261 transitions. [2021-03-25 07:59:14,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:14,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 261 transitions. [2021-03-25 07:59:14,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:14,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:14,763 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:14,763 INFO L185 Difference]: Start difference. First operand has 782 places, 882 transitions, 27075 flow. Second operand 8 states and 261 transitions. [2021-03-25 07:59:14,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 789 places, 888 transitions, 29023 flow [2021-03-25 07:59:16,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 787 places, 888 transitions, 28397 flow, removed 306 selfloop flow, removed 2 redundant places. [2021-03-25 07:59:16,571 INFO L241 Difference]: Finished difference. Result has 789 places, 875 transitions, 26396 flow [2021-03-25 07:59:16,572 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=26449, PETRI_DIFFERENCE_MINUEND_PLACES=780, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=882, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=813, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=26396, PETRI_PLACES=789, PETRI_TRANSITIONS=875} [2021-03-25 07:59:16,572 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 758 predicate places. [2021-03-25 07:59:16,572 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:16,572 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 789 places, 875 transitions, 26396 flow [2021-03-25 07:59:16,572 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 789 places, 875 transitions, 26396 flow [2021-03-25 07:59:16,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 789 places, 875 transitions, 26396 flow [2021-03-25 07:59:16,901 INFO L129 PetriNetUnfolder]: 449/1059 cut-off events. [2021-03-25 07:59:16,901 INFO L130 PetriNetUnfolder]: For 119997/120010 co-relation queries the response was YES. [2021-03-25 07:59:16,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16456 conditions, 1059 events. 449/1059 cut-off events. For 119997/120010 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 8045 event pairs, 0 based on Foata normal form. 8/1067 useless extension candidates. Maximal degree in co-relation 16068. Up to 309 conditions per place. [2021-03-25 07:59:16,944 INFO L142 LiptonReduction]: Number of co-enabled transitions 1080 [2021-03-25 07:59:17,033 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:17,033 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:17,033 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 461 [2021-03-25 07:59:17,034 INFO L480 AbstractCegarLoop]: Abstraction has has 789 places, 875 transitions, 26396 flow [2021-03-25 07:59:17,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:17,034 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:17,034 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:17,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-03-25 07:59:17,034 INFO L428 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:17,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:17,034 INFO L82 PathProgramCache]: Analyzing trace with hash -230549511, now seen corresponding path program 2 times [2021-03-25 07:59:17,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:17,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144205741] [2021-03-25 07:59:17,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:17,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:17,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:17,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:17,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:17,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:17,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:17,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:17,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:17,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:17,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:17,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:17,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:17,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:17,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:17,079 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:17,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:17,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:17,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144205741] [2021-03-25 07:59:17,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:17,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:59:17,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171421950] [2021-03-25 07:59:17,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:59:17,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:17,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:59:17,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:59:17,082 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:59:17,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 789 places, 875 transitions, 26396 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:17,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:17,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:59:17,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:17,870 INFO L129 PetriNetUnfolder]: 550/1239 cut-off events. [2021-03-25 07:59:17,870 INFO L130 PetriNetUnfolder]: For 136612/136612 co-relation queries the response was YES. [2021-03-25 07:59:17,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20526 conditions, 1239 events. 550/1239 cut-off events. For 136612/136612 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 9064 event pairs, 2 based on Foata normal form. 1/1240 useless extension candidates. Maximal degree in co-relation 20019. Up to 1070 conditions per place. [2021-03-25 07:59:17,904 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 839 selfloop transitions, 30 changer transitions 6/880 dead transitions. [2021-03-25 07:59:17,905 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 795 places, 880 transitions, 28312 flow [2021-03-25 07:59:17,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:59:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:59:17,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2021-03-25 07:59:17,905 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44015444015444016 [2021-03-25 07:59:17,906 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 228 transitions. [2021-03-25 07:59:17,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 228 transitions. [2021-03-25 07:59:17,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:17,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 228 transitions. [2021-03-25 07:59:17,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:17,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:17,906 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:17,906 INFO L185 Difference]: Start difference. First operand has 789 places, 875 transitions, 26396 flow. Second operand 7 states and 228 transitions. [2021-03-25 07:59:17,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 795 places, 880 transitions, 28312 flow [2021-03-25 07:59:19,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 780 places, 880 transitions, 28092 flow, removed 6 selfloop flow, removed 15 redundant places. [2021-03-25 07:59:19,574 INFO L241 Difference]: Finished difference. Result has 782 places, 870 transitions, 26081 flow [2021-03-25 07:59:19,575 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=26180, PETRI_DIFFERENCE_MINUEND_PLACES=774, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=875, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=845, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26081, PETRI_PLACES=782, PETRI_TRANSITIONS=870} [2021-03-25 07:59:19,575 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 751 predicate places. [2021-03-25 07:59:19,575 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:19,575 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 782 places, 870 transitions, 26081 flow [2021-03-25 07:59:19,575 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 782 places, 870 transitions, 26081 flow [2021-03-25 07:59:19,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 782 places, 870 transitions, 26081 flow [2021-03-25 07:59:19,924 INFO L129 PetriNetUnfolder]: 447/1046 cut-off events. [2021-03-25 07:59:19,924 INFO L130 PetriNetUnfolder]: For 118467/118467 co-relation queries the response was YES. [2021-03-25 07:59:19,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16274 conditions, 1046 events. 447/1046 cut-off events. For 118467/118467 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 7849 event pairs, 1 based on Foata normal form. 0/1045 useless extension candidates. Maximal degree in co-relation 15888. Up to 309 conditions per place. [2021-03-25 07:59:19,957 INFO L142 LiptonReduction]: Number of co-enabled transitions 1062 [2021-03-25 07:59:20,037 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:20,037 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:20,037 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 462 [2021-03-25 07:59:20,038 INFO L480 AbstractCegarLoop]: Abstraction has has 782 places, 870 transitions, 26081 flow [2021-03-25 07:59:20,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:20,038 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:20,038 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:20,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-03-25 07:59:20,038 INFO L428 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:20,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:20,038 INFO L82 PathProgramCache]: Analyzing trace with hash -964548381, now seen corresponding path program 3 times [2021-03-25 07:59:20,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:20,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669236979] [2021-03-25 07:59:20,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:20,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:20,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:20,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:20,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:20,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:20,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:20,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:20,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:20,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:20,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:20,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:20,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:20,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:20,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:20,084 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:20,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:20,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:20,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669236979] [2021-03-25 07:59:20,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:20,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:59:20,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096763988] [2021-03-25 07:59:20,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:59:20,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:20,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:59:20,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:59:20,087 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:59:20,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 782 places, 870 transitions, 26081 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:20,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:20,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:59:20,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:20,861 INFO L129 PetriNetUnfolder]: 549/1233 cut-off events. [2021-03-25 07:59:20,861 INFO L130 PetriNetUnfolder]: For 139316/139316 co-relation queries the response was YES. [2021-03-25 07:59:20,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20505 conditions, 1233 events. 549/1233 cut-off events. For 139316/139316 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 9015 event pairs, 1 based on Foata normal form. 1/1234 useless extension candidates. Maximal degree in co-relation 20000. Up to 1052 conditions per place. [2021-03-25 07:59:20,893 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 813 selfloop transitions, 59 changer transitions 2/879 dead transitions. [2021-03-25 07:59:20,893 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 789 places, 879 transitions, 28325 flow [2021-03-25 07:59:20,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:59:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:59:20,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 261 transitions. [2021-03-25 07:59:20,894 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4408783783783784 [2021-03-25 07:59:20,894 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 261 transitions. [2021-03-25 07:59:20,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 261 transitions. [2021-03-25 07:59:20,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:20,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 261 transitions. [2021-03-25 07:59:20,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.625) internal successors, (261), 8 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:20,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:20,895 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:20,895 INFO L185 Difference]: Start difference. First operand has 782 places, 870 transitions, 26081 flow. Second operand 8 states and 261 transitions. [2021-03-25 07:59:20,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 789 places, 879 transitions, 28325 flow [2021-03-25 07:59:22,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 779 places, 879 transitions, 28233 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-03-25 07:59:22,547 INFO L241 Difference]: Finished difference. Result has 782 places, 871 transitions, 26319 flow [2021-03-25 07:59:22,548 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=25993, PETRI_DIFFERENCE_MINUEND_PLACES=772, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=870, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=811, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=26319, PETRI_PLACES=782, PETRI_TRANSITIONS=871} [2021-03-25 07:59:22,548 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 751 predicate places. [2021-03-25 07:59:22,548 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:22,548 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 782 places, 871 transitions, 26319 flow [2021-03-25 07:59:22,548 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 782 places, 871 transitions, 26319 flow [2021-03-25 07:59:22,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 782 places, 871 transitions, 26319 flow [2021-03-25 07:59:22,882 INFO L129 PetriNetUnfolder]: 447/1054 cut-off events. [2021-03-25 07:59:22,883 INFO L130 PetriNetUnfolder]: For 120946/120959 co-relation queries the response was YES. [2021-03-25 07:59:22,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16402 conditions, 1054 events. 447/1054 cut-off events. For 120946/120959 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 7997 event pairs, 1 based on Foata normal form. 8/1062 useless extension candidates. Maximal degree in co-relation 16017. Up to 310 conditions per place. [2021-03-25 07:59:22,923 INFO L142 LiptonReduction]: Number of co-enabled transitions 1064 [2021-03-25 07:59:23,009 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:23,010 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:23,010 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 462 [2021-03-25 07:59:23,010 INFO L480 AbstractCegarLoop]: Abstraction has has 782 places, 871 transitions, 26319 flow [2021-03-25 07:59:23,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:23,010 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:23,010 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:23,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-03-25 07:59:23,010 INFO L428 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:23,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:23,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1903841001, now seen corresponding path program 4 times [2021-03-25 07:59:23,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:23,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919562594] [2021-03-25 07:59:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:23,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:23,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:23,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:23,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:23,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:23,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:23,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:23,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:23,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:23,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:23,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:23,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:23,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:23,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:23,054 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:23,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:23,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:23,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919562594] [2021-03-25 07:59:23,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:23,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:59:23,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616810860] [2021-03-25 07:59:23,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:59:23,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:23,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:59:23,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:59:23,057 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:59:23,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 782 places, 871 transitions, 26319 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:23,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:23,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:59:23,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:23,843 INFO L129 PetriNetUnfolder]: 548/1233 cut-off events. [2021-03-25 07:59:23,844 INFO L130 PetriNetUnfolder]: For 135490/135490 co-relation queries the response was YES. [2021-03-25 07:59:23,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20469 conditions, 1233 events. 548/1233 cut-off events. For 135490/135490 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 8989 event pairs, 1 based on Foata normal form. 1/1234 useless extension candidates. Maximal degree in co-relation 19965. Up to 1052 conditions per place. [2021-03-25 07:59:23,876 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 807 selfloop transitions, 61 changer transitions 3/876 dead transitions. [2021-03-25 07:59:23,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 789 places, 876 transitions, 28223 flow [2021-03-25 07:59:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:59:23,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:59:23,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2021-03-25 07:59:23,877 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4375 [2021-03-25 07:59:23,877 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 259 transitions. [2021-03-25 07:59:23,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 259 transitions. [2021-03-25 07:59:23,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:23,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 259 transitions. [2021-03-25 07:59:23,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:23,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:23,878 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:23,878 INFO L185 Difference]: Start difference. First operand has 782 places, 871 transitions, 26319 flow. Second operand 8 states and 259 transitions. [2021-03-25 07:59:23,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 789 places, 876 transitions, 28223 flow [2021-03-25 07:59:25,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 783 places, 876 transitions, 27994 flow, removed 66 selfloop flow, removed 6 redundant places. [2021-03-25 07:59:25,677 INFO L241 Difference]: Finished difference. Result has 785 places, 869 transitions, 26184 flow [2021-03-25 07:59:25,678 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=26090, PETRI_DIFFERENCE_MINUEND_PLACES=776, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=871, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=810, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=26184, PETRI_PLACES=785, PETRI_TRANSITIONS=869} [2021-03-25 07:59:25,678 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 754 predicate places. [2021-03-25 07:59:25,678 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:25,678 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 785 places, 869 transitions, 26184 flow [2021-03-25 07:59:25,678 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 785 places, 869 transitions, 26184 flow [2021-03-25 07:59:25,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 785 places, 869 transitions, 26184 flow [2021-03-25 07:59:26,036 INFO L129 PetriNetUnfolder]: 446/1055 cut-off events. [2021-03-25 07:59:26,036 INFO L130 PetriNetUnfolder]: For 105118/105139 co-relation queries the response was YES. [2021-03-25 07:59:26,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16328 conditions, 1055 events. 446/1055 cut-off events. For 105118/105139 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 7947 event pairs, 5 based on Foata normal form. 10/1065 useless extension candidates. Maximal degree in co-relation 15943. Up to 309 conditions per place. [2021-03-25 07:59:26,072 INFO L142 LiptonReduction]: Number of co-enabled transitions 1058 [2021-03-25 07:59:26,146 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:26,147 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:26,147 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 469 [2021-03-25 07:59:26,147 INFO L480 AbstractCegarLoop]: Abstraction has has 785 places, 869 transitions, 26184 flow [2021-03-25 07:59:26,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:26,147 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:26,147 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:26,147 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-03-25 07:59:26,148 INFO L428 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:26,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:26,148 INFO L82 PathProgramCache]: Analyzing trace with hash -735609671, now seen corresponding path program 5 times [2021-03-25 07:59:26,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:26,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757046685] [2021-03-25 07:59:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:26,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:26,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:26,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:26,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:26,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:26,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:26,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:26,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:26,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:26,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:26,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:26,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:26,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:26,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:26,199 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:26,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:26,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:26,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757046685] [2021-03-25 07:59:26,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:26,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:59:26,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287594096] [2021-03-25 07:59:26,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:59:26,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:26,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:59:26,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:59:26,202 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:59:26,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 785 places, 869 transitions, 26184 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:26,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:26,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:59:26,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:26,990 INFO L129 PetriNetUnfolder]: 547/1230 cut-off events. [2021-03-25 07:59:26,990 INFO L130 PetriNetUnfolder]: For 134315/134315 co-relation queries the response was YES. [2021-03-25 07:59:27,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20408 conditions, 1230 events. 547/1230 cut-off events. For 134315/134315 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 8976 event pairs, 2 based on Foata normal form. 1/1231 useless extension candidates. Maximal degree in co-relation 19904. Up to 1036 conditions per place. [2021-03-25 07:59:27,025 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 812 selfloop transitions, 55 changer transitions 6/878 dead transitions. [2021-03-25 07:59:27,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 878 transitions, 28144 flow [2021-03-25 07:59:27,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:59:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:59:27,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2021-03-25 07:59:27,027 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44256756756756754 [2021-03-25 07:59:27,027 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 262 transitions. [2021-03-25 07:59:27,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 262 transitions. [2021-03-25 07:59:27,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:27,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 262 transitions. [2021-03-25 07:59:27,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.75) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:27,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:27,027 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:27,028 INFO L185 Difference]: Start difference. First operand has 785 places, 869 transitions, 26184 flow. Second operand 8 states and 262 transitions. [2021-03-25 07:59:27,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 792 places, 878 transitions, 28144 flow [2021-03-25 07:59:28,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 780 places, 878 transitions, 27954 flow, removed 5 selfloop flow, removed 12 redundant places. [2021-03-25 07:59:28,988 INFO L241 Difference]: Finished difference. Result has 783 places, 865 transitions, 26036 flow [2021-03-25 07:59:28,989 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=25998, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=869, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=814, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=26036, PETRI_PLACES=783, PETRI_TRANSITIONS=865} [2021-03-25 07:59:28,989 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 752 predicate places. [2021-03-25 07:59:28,989 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:28,989 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 783 places, 865 transitions, 26036 flow [2021-03-25 07:59:28,989 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 783 places, 865 transitions, 26036 flow [2021-03-25 07:59:28,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 783 places, 865 transitions, 26036 flow [2021-03-25 07:59:29,303 INFO L129 PetriNetUnfolder]: 444/1032 cut-off events. [2021-03-25 07:59:29,304 INFO L130 PetriNetUnfolder]: For 111254/111281 co-relation queries the response was YES. [2021-03-25 07:59:29,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16232 conditions, 1032 events. 444/1032 cut-off events. For 111254/111281 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 7695 event pairs, 1 based on Foata normal form. 8/1040 useless extension candidates. Maximal degree in co-relation 15847. Up to 309 conditions per place. [2021-03-25 07:59:29,342 INFO L142 LiptonReduction]: Number of co-enabled transitions 1048 [2021-03-25 07:59:29,429 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:29,429 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:29,429 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 440 [2021-03-25 07:59:29,429 INFO L480 AbstractCegarLoop]: Abstraction has has 783 places, 865 transitions, 26036 flow [2021-03-25 07:59:29,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:29,430 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:29,430 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:29,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-03-25 07:59:29,430 INFO L428 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:29,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:29,430 INFO L82 PathProgramCache]: Analyzing trace with hash 753795325, now seen corresponding path program 6 times [2021-03-25 07:59:29,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:29,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136942401] [2021-03-25 07:59:29,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:29,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:29,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:29,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:29,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:29,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:29,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:29,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:29,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:29,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:29,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:29,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:29,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:29,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:29,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:29,483 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:29,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:29,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:29,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136942401] [2021-03-25 07:59:29,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:29,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:59:29,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207971923] [2021-03-25 07:59:29,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:59:29,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:29,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:59:29,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:59:29,486 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 74 [2021-03-25 07:59:29,487 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 783 places, 865 transitions, 26036 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:29,487 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:29,487 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 74 [2021-03-25 07:59:29,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:30,269 INFO L129 PetriNetUnfolder]: 545/1225 cut-off events. [2021-03-25 07:59:30,269 INFO L130 PetriNetUnfolder]: For 132319/132319 co-relation queries the response was YES. [2021-03-25 07:59:30,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20324 conditions, 1225 events. 545/1225 cut-off events. For 132319/132319 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 8911 event pairs, 2 based on Foata normal form. 1/1226 useless extension candidates. Maximal degree in co-relation 19820. Up to 1055 conditions per place. [2021-03-25 07:59:30,300 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 824 selfloop transitions, 36 changer transitions 6/871 dead transitions. [2021-03-25 07:59:30,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 790 places, 871 transitions, 27934 flow [2021-03-25 07:59:30,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:59:30,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:59:30,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 260 transitions. [2021-03-25 07:59:30,302 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4391891891891892 [2021-03-25 07:59:30,302 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 260 transitions. [2021-03-25 07:59:30,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 260 transitions. [2021-03-25 07:59:30,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:30,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 260 transitions. [2021-03-25 07:59:30,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:30,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:30,303 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:30,303 INFO L185 Difference]: Start difference. First operand has 783 places, 865 transitions, 26036 flow. Second operand 8 states and 260 transitions. [2021-03-25 07:59:30,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 790 places, 871 transitions, 27934 flow [2021-03-25 07:59:31,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 777 places, 871 transitions, 27736 flow, removed 4 selfloop flow, removed 13 redundant places. [2021-03-25 07:59:31,979 INFO L241 Difference]: Finished difference. Result has 779 places, 860 transitions, 25722 flow [2021-03-25 07:59:31,980 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=25840, PETRI_DIFFERENCE_MINUEND_PLACES=770, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=865, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=829, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=25722, PETRI_PLACES=779, PETRI_TRANSITIONS=860} [2021-03-25 07:59:31,980 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 748 predicate places. [2021-03-25 07:59:31,980 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:31,980 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 779 places, 860 transitions, 25722 flow [2021-03-25 07:59:31,980 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 779 places, 860 transitions, 25722 flow [2021-03-25 07:59:31,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 779 places, 860 transitions, 25722 flow [2021-03-25 07:59:32,363 INFO L129 PetriNetUnfolder]: 443/1034 cut-off events. [2021-03-25 07:59:32,363 INFO L130 PetriNetUnfolder]: For 120138/120165 co-relation queries the response was YES. [2021-03-25 07:59:32,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16061 conditions, 1034 events. 443/1034 cut-off events. For 120138/120165 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 7757 event pairs, 0 based on Foata normal form. 8/1042 useless extension candidates. Maximal degree in co-relation 15678. Up to 309 conditions per place. [2021-03-25 07:59:32,398 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-25 07:59:32,476 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:32,476 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:32,476 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 496 [2021-03-25 07:59:32,476 INFO L480 AbstractCegarLoop]: Abstraction has has 779 places, 860 transitions, 25722 flow [2021-03-25 07:59:32,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:32,477 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:32,477 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:32,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-03-25 07:59:32,477 INFO L428 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:32,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:32,477 INFO L82 PathProgramCache]: Analyzing trace with hash -676259588, now seen corresponding path program 31 times [2021-03-25 07:59:32,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:32,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233347061] [2021-03-25 07:59:32,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:32,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:32,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:32,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:32,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:32,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:32,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:32,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:32,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:32,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:32,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 07:59:32,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:32,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:32,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:32,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:32,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:32,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:32,532 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:32,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:32,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:32,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233347061] [2021-03-25 07:59:32,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:32,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:59:32,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166016699] [2021-03-25 07:59:32,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:59:32,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:32,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:59:32,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:59:32,535 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 07:59:32,535 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 860 transitions, 25722 flow. Second operand has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:32,535 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:32,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 07:59:32,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:33,370 INFO L129 PetriNetUnfolder]: 556/1244 cut-off events. [2021-03-25 07:59:33,370 INFO L130 PetriNetUnfolder]: For 149181/149181 co-relation queries the response was YES. [2021-03-25 07:59:33,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21095 conditions, 1244 events. 556/1244 cut-off events. For 149181/149181 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 9021 event pairs, 4 based on Foata normal form. 1/1245 useless extension candidates. Maximal degree in co-relation 20592. Up to 1018 conditions per place. [2021-03-25 07:59:33,405 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 818 selfloop transitions, 62 changer transitions 7/891 dead transitions. [2021-03-25 07:59:33,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 787 places, 891 transitions, 29580 flow [2021-03-25 07:59:33,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:59:33,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:59:33,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 278 transitions. [2021-03-25 07:59:33,406 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4174174174174174 [2021-03-25 07:59:33,406 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 278 transitions. [2021-03-25 07:59:33,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 278 transitions. [2021-03-25 07:59:33,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:33,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 278 transitions. [2021-03-25 07:59:33,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:33,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:33,407 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:33,408 INFO L185 Difference]: Start difference. First operand has 779 places, 860 transitions, 25722 flow. Second operand 9 states and 278 transitions. [2021-03-25 07:59:33,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 787 places, 891 transitions, 29580 flow [2021-03-25 07:59:35,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 763 places, 891 transitions, 29270 flow, removed 29 selfloop flow, removed 24 redundant places. [2021-03-25 07:59:35,344 INFO L241 Difference]: Finished difference. Result has 767 places, 874 transitions, 26769 flow [2021-03-25 07:59:35,344 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=25452, PETRI_DIFFERENCE_MINUEND_PLACES=755, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=860, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=801, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=26769, PETRI_PLACES=767, PETRI_TRANSITIONS=874} [2021-03-25 07:59:35,345 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 736 predicate places. [2021-03-25 07:59:35,345 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:35,345 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 767 places, 874 transitions, 26769 flow [2021-03-25 07:59:35,345 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 767 places, 874 transitions, 26769 flow [2021-03-25 07:59:35,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 767 places, 874 transitions, 26769 flow [2021-03-25 07:59:35,683 INFO L129 PetriNetUnfolder]: 451/1045 cut-off events. [2021-03-25 07:59:35,684 INFO L130 PetriNetUnfolder]: For 129626/129647 co-relation queries the response was YES. [2021-03-25 07:59:35,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16565 conditions, 1045 events. 451/1045 cut-off events. For 129626/129647 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 7850 event pairs, 0 based on Foata normal form. 10/1054 useless extension candidates. Maximal degree in co-relation 16186. Up to 318 conditions per place. [2021-03-25 07:59:35,725 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-25 07:59:35,814 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:35,814 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:35,814 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 469 [2021-03-25 07:59:35,814 INFO L480 AbstractCegarLoop]: Abstraction has has 767 places, 874 transitions, 26769 flow [2021-03-25 07:59:35,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:35,814 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:35,814 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:35,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-03-25 07:59:35,815 INFO L428 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:35,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:35,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1539296640, now seen corresponding path program 32 times [2021-03-25 07:59:35,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:35,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154005887] [2021-03-25 07:59:35,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:35,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:35,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:35,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:35,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:35,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:35,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:35,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:35,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:35,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:35,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 07:59:35,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:35,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:35,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:35,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:35,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:35,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:35,870 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:35,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:35,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154005887] [2021-03-25 07:59:35,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:35,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:59:35,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613284691] [2021-03-25 07:59:35,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:59:35,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:35,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:59:35,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:59:35,873 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 07:59:35,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 767 places, 874 transitions, 26769 flow. Second operand has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:35,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:35,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 07:59:35,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:36,761 INFO L129 PetriNetUnfolder]: 559/1252 cut-off events. [2021-03-25 07:59:36,761 INFO L130 PetriNetUnfolder]: For 161626/161626 co-relation queries the response was YES. [2021-03-25 07:59:36,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21548 conditions, 1252 events. 559/1252 cut-off events. For 161626/161626 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 9088 event pairs, 3 based on Foata normal form. 1/1253 useless extension candidates. Maximal degree in co-relation 21051. Up to 1031 conditions per place. [2021-03-25 07:59:36,797 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 836 selfloop transitions, 49 changer transitions 8/897 dead transitions. [2021-03-25 07:59:36,797 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 775 places, 897 transitions, 30493 flow [2021-03-25 07:59:36,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:59:36,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:59:36,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 278 transitions. [2021-03-25 07:59:36,798 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4174174174174174 [2021-03-25 07:59:36,798 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 278 transitions. [2021-03-25 07:59:36,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 278 transitions. [2021-03-25 07:59:36,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:36,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 278 transitions. [2021-03-25 07:59:36,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:36,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:36,799 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:36,799 INFO L185 Difference]: Start difference. First operand has 767 places, 874 transitions, 26769 flow. Second operand 9 states and 278 transitions. [2021-03-25 07:59:36,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 775 places, 897 transitions, 30493 flow [2021-03-25 07:59:38,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 770 places, 897 transitions, 29644 flow, removed 399 selfloop flow, removed 5 redundant places. [2021-03-25 07:59:38,752 INFO L241 Difference]: Finished difference. Result has 774 places, 879 transitions, 26993 flow [2021-03-25 07:59:38,752 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=25920, PETRI_DIFFERENCE_MINUEND_PLACES=762, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=874, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=828, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=26993, PETRI_PLACES=774, PETRI_TRANSITIONS=879} [2021-03-25 07:59:38,752 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 743 predicate places. [2021-03-25 07:59:38,752 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:38,752 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 774 places, 879 transitions, 26993 flow [2021-03-25 07:59:38,752 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 774 places, 879 transitions, 26993 flow [2021-03-25 07:59:38,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 774 places, 879 transitions, 26993 flow [2021-03-25 07:59:39,097 INFO L129 PetriNetUnfolder]: 454/1058 cut-off events. [2021-03-25 07:59:39,097 INFO L130 PetriNetUnfolder]: For 136778/136817 co-relation queries the response was YES. [2021-03-25 07:59:39,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16745 conditions, 1058 events. 454/1058 cut-off events. For 136778/136817 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 7969 event pairs, 0 based on Foata normal form. 10/1067 useless extension candidates. Maximal degree in co-relation 16362. Up to 319 conditions per place. [2021-03-25 07:59:39,135 INFO L142 LiptonReduction]: Number of co-enabled transitions 1042 [2021-03-25 07:59:39,214 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:39,214 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:39,215 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 463 [2021-03-25 07:59:39,215 INFO L480 AbstractCegarLoop]: Abstraction has has 774 places, 879 transitions, 26993 flow [2021-03-25 07:59:39,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:39,215 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:39,215 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:39,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-03-25 07:59:39,215 INFO L428 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:39,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:39,215 INFO L82 PathProgramCache]: Analyzing trace with hash -529176320, now seen corresponding path program 33 times [2021-03-25 07:59:39,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:39,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588757588] [2021-03-25 07:59:39,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:39,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:39,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:39,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:39,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:39,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:39,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:39,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:39,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:39,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:39,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 07:59:39,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:39,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:39,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:39,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:39,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:39,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:39,303 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:39,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:39,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:39,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588757588] [2021-03-25 07:59:39,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:39,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:59:39,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325510725] [2021-03-25 07:59:39,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:59:39,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:39,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:59:39,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:59:39,307 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 07:59:39,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 774 places, 879 transitions, 26993 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:39,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:39,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 07:59:39,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:40,201 INFO L129 PetriNetUnfolder]: 575/1276 cut-off events. [2021-03-25 07:59:40,201 INFO L130 PetriNetUnfolder]: For 187570/187570 co-relation queries the response was YES. [2021-03-25 07:59:40,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22554 conditions, 1276 events. 575/1276 cut-off events. For 187570/187570 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 9291 event pairs, 3 based on Foata normal form. 1/1277 useless extension candidates. Maximal degree in co-relation 22053. Up to 1030 conditions per place. [2021-03-25 07:59:40,234 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 798 selfloop transitions, 109 changer transitions 10/921 dead transitions. [2021-03-25 07:59:40,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 783 places, 921 transitions, 32337 flow [2021-03-25 07:59:40,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:59:40,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:59:40,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 07:59:40,235 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4135135135135135 [2021-03-25 07:59:40,235 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 07:59:40,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 07:59:40,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:40,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 07:59:40,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:40,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:40,236 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:40,236 INFO L185 Difference]: Start difference. First operand has 774 places, 879 transitions, 26993 flow. Second operand 10 states and 306 transitions. [2021-03-25 07:59:40,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 783 places, 921 transitions, 32337 flow [2021-03-25 07:59:41,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 921 transitions, 30671 flow, removed 814 selfloop flow, removed 5 redundant places. [2021-03-25 07:59:42,001 INFO L241 Difference]: Finished difference. Result has 784 places, 902 transitions, 28075 flow [2021-03-25 07:59:42,002 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=26075, PETRI_DIFFERENCE_MINUEND_PLACES=769, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=879, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=775, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=28075, PETRI_PLACES=784, PETRI_TRANSITIONS=902} [2021-03-25 07:59:42,002 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 753 predicate places. [2021-03-25 07:59:42,002 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:42,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 784 places, 902 transitions, 28075 flow [2021-03-25 07:59:42,002 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 784 places, 902 transitions, 28075 flow [2021-03-25 07:59:42,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 784 places, 902 transitions, 28075 flow [2021-03-25 07:59:42,344 INFO L129 PetriNetUnfolder]: 468/1081 cut-off events. [2021-03-25 07:59:42,345 INFO L130 PetriNetUnfolder]: For 142797/142836 co-relation queries the response was YES. [2021-03-25 07:59:42,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17368 conditions, 1081 events. 468/1081 cut-off events. For 142797/142836 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 8136 event pairs, 0 based on Foata normal form. 10/1090 useless extension candidates. Maximal degree in co-relation 16979. Up to 327 conditions per place. [2021-03-25 07:59:42,388 INFO L142 LiptonReduction]: Number of co-enabled transitions 1044 [2021-03-25 07:59:42,482 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:42,482 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:42,482 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 480 [2021-03-25 07:59:42,483 INFO L480 AbstractCegarLoop]: Abstraction has has 784 places, 902 transitions, 28075 flow [2021-03-25 07:59:42,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:42,483 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:42,483 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:42,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-03-25 07:59:42,483 INFO L428 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:42,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:42,483 INFO L82 PathProgramCache]: Analyzing trace with hash 765658426, now seen corresponding path program 34 times [2021-03-25 07:59:42,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:42,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962054344] [2021-03-25 07:59:42,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:42,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:42,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:42,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:42,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:42,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:42,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:42,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:42,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:42,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:42,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 07:59:42,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:42,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:42,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:42,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:42,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:42,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:42,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:42,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:42,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:42,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962054344] [2021-03-25 07:59:42,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:42,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:59:42,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458823924] [2021-03-25 07:59:42,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:59:42,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:42,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:59:42,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:59:42,550 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 07:59:42,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 784 places, 902 transitions, 28075 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:42,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:42,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 07:59:42,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:43,556 INFO L129 PetriNetUnfolder]: 580/1284 cut-off events. [2021-03-25 07:59:43,556 INFO L130 PetriNetUnfolder]: For 183087/183087 co-relation queries the response was YES. [2021-03-25 07:59:43,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22680 conditions, 1284 events. 580/1284 cut-off events. For 183087/183087 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 9322 event pairs, 6 based on Foata normal form. 1/1285 useless extension candidates. Maximal degree in co-relation 22173. Up to 1054 conditions per place. [2021-03-25 07:59:43,592 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 795 selfloop transitions, 122 changer transitions 9/930 dead transitions. [2021-03-25 07:59:43,592 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 793 places, 930 transitions, 32394 flow [2021-03-25 07:59:43,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:59:43,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:59:43,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2021-03-25 07:59:43,593 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41216216216216217 [2021-03-25 07:59:43,593 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 305 transitions. [2021-03-25 07:59:43,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 305 transitions. [2021-03-25 07:59:43,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:43,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 305 transitions. [2021-03-25 07:59:43,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.5) internal successors, (305), 10 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:43,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:43,594 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:43,594 INFO L185 Difference]: Start difference. First operand has 784 places, 902 transitions, 28075 flow. Second operand 10 states and 305 transitions. [2021-03-25 07:59:43,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 793 places, 930 transitions, 32394 flow [2021-03-25 07:59:45,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 790 places, 930 transitions, 31190 flow, removed 573 selfloop flow, removed 3 redundant places. [2021-03-25 07:59:45,465 INFO L241 Difference]: Finished difference. Result has 793 places, 913 transitions, 28689 flow [2021-03-25 07:59:45,465 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=26871, PETRI_DIFFERENCE_MINUEND_PLACES=781, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=786, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=28689, PETRI_PLACES=793, PETRI_TRANSITIONS=913} [2021-03-25 07:59:45,465 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 762 predicate places. [2021-03-25 07:59:45,466 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:45,466 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 793 places, 913 transitions, 28689 flow [2021-03-25 07:59:45,466 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 793 places, 913 transitions, 28689 flow [2021-03-25 07:59:45,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 793 places, 913 transitions, 28689 flow [2021-03-25 07:59:45,818 INFO L129 PetriNetUnfolder]: 474/1091 cut-off events. [2021-03-25 07:59:45,818 INFO L130 PetriNetUnfolder]: For 153060/153099 co-relation queries the response was YES. [2021-03-25 07:59:45,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17716 conditions, 1091 events. 474/1091 cut-off events. For 153060/153099 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 8221 event pairs, 0 based on Foata normal form. 10/1100 useless extension candidates. Maximal degree in co-relation 17324. Up to 333 conditions per place. [2021-03-25 07:59:45,860 INFO L142 LiptonReduction]: Number of co-enabled transitions 1044 [2021-03-25 07:59:45,957 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:45,957 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:45,957 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 491 [2021-03-25 07:59:45,958 INFO L480 AbstractCegarLoop]: Abstraction has has 793 places, 913 transitions, 28689 flow [2021-03-25 07:59:45,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:45,958 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:45,958 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:45,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-03-25 07:59:45,958 INFO L428 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:45,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:45,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1468449068, now seen corresponding path program 35 times [2021-03-25 07:59:45,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:45,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893693933] [2021-03-25 07:59:45,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:45,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:45,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:45,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:45,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:45,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:45,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:45,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:45,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:45,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:45,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 07:59:46,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:46,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:46,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:46,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:46,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:46,036 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:46,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:46,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893693933] [2021-03-25 07:59:46,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:46,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:59:46,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856222421] [2021-03-25 07:59:46,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:59:46,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:46,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:59:46,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:59:46,040 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 07:59:46,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 793 places, 913 transitions, 28689 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:46,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:46,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 07:59:46,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:47,038 INFO L129 PetriNetUnfolder]: 584/1295 cut-off events. [2021-03-25 07:59:47,038 INFO L130 PetriNetUnfolder]: For 182292/182292 co-relation queries the response was YES. [2021-03-25 07:59:47,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23051 conditions, 1295 events. 584/1295 cut-off events. For 182292/182292 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 9456 event pairs, 2 based on Foata normal form. 1/1296 useless extension candidates. Maximal degree in co-relation 22540. Up to 1089 conditions per place. [2021-03-25 07:59:47,076 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 849 selfloop transitions, 80 changer transitions 6/939 dead transitions. [2021-03-25 07:59:47,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 802 places, 939 transitions, 33032 flow [2021-03-25 07:59:47,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:59:47,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:59:47,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2021-03-25 07:59:47,077 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41216216216216217 [2021-03-25 07:59:47,077 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 305 transitions. [2021-03-25 07:59:47,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 305 transitions. [2021-03-25 07:59:47,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:47,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 305 transitions. [2021-03-25 07:59:47,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.5) internal successors, (305), 10 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:47,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:47,078 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:47,078 INFO L185 Difference]: Start difference. First operand has 793 places, 913 transitions, 28689 flow. Second operand 10 states and 305 transitions. [2021-03-25 07:59:47,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 802 places, 939 transitions, 33032 flow [2021-03-25 07:59:49,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 797 places, 939 transitions, 31743 flow, removed 594 selfloop flow, removed 5 redundant places. [2021-03-25 07:59:49,128 INFO L241 Difference]: Finished difference. Result has 799 places, 925 transitions, 29172 flow [2021-03-25 07:59:49,128 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=27400, PETRI_DIFFERENCE_MINUEND_PLACES=788, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=913, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=839, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=29172, PETRI_PLACES=799, PETRI_TRANSITIONS=925} [2021-03-25 07:59:49,128 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 768 predicate places. [2021-03-25 07:59:49,128 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:49,128 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 799 places, 925 transitions, 29172 flow [2021-03-25 07:59:49,129 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 799 places, 925 transitions, 29172 flow [2021-03-25 07:59:49,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 799 places, 925 transitions, 29172 flow [2021-03-25 07:59:49,499 INFO L129 PetriNetUnfolder]: 480/1098 cut-off events. [2021-03-25 07:59:49,499 INFO L130 PetriNetUnfolder]: For 153726/153755 co-relation queries the response was YES. [2021-03-25 07:59:49,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18002 conditions, 1098 events. 480/1098 cut-off events. For 153726/153755 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 8268 event pairs, 0 based on Foata normal form. 8/1105 useless extension candidates. Maximal degree in co-relation 17607. Up to 339 conditions per place. [2021-03-25 07:59:49,542 INFO L142 LiptonReduction]: Number of co-enabled transitions 1044 [2021-03-25 07:59:49,638 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:49,638 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:49,639 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 511 [2021-03-25 07:59:49,639 INFO L480 AbstractCegarLoop]: Abstraction has has 799 places, 925 transitions, 29172 flow [2021-03-25 07:59:49,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:49,639 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:49,639 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:49,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-03-25 07:59:49,639 INFO L428 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:49,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:49,639 INFO L82 PathProgramCache]: Analyzing trace with hash 684107226, now seen corresponding path program 36 times [2021-03-25 07:59:49,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:49,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597217029] [2021-03-25 07:59:49,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:49,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:49,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:49,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:49,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:49,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:49,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:49,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:49,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:49,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:49,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 07:59:49,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:49,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:49,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:49,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:49,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:49,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:49,704 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:49,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:49,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597217029] [2021-03-25 07:59:49,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:49,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:59:49,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350716171] [2021-03-25 07:59:49,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:59:49,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:49,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:59:49,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:59:49,707 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 07:59:49,708 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 799 places, 925 transitions, 29172 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:49,708 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:49,708 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 07:59:49,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:50,733 INFO L129 PetriNetUnfolder]: 591/1305 cut-off events. [2021-03-25 07:59:50,734 INFO L130 PetriNetUnfolder]: For 188218/188218 co-relation queries the response was YES. [2021-03-25 07:59:50,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23488 conditions, 1305 events. 591/1305 cut-off events. For 188218/188218 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 9499 event pairs, 1 based on Foata normal form. 1/1306 useless extension candidates. Maximal degree in co-relation 22974. Up to 1120 conditions per place. [2021-03-25 07:59:50,762 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 898 selfloop transitions, 46 changer transitions 4/952 dead transitions. [2021-03-25 07:59:50,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 808 places, 952 transitions, 33804 flow [2021-03-25 07:59:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:59:50,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:59:50,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 07:59:50,766 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4135135135135135 [2021-03-25 07:59:50,766 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 07:59:50,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 07:59:50,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:50,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 07:59:50,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:50,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:50,767 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:50,767 INFO L185 Difference]: Start difference. First operand has 799 places, 925 transitions, 29172 flow. Second operand 10 states and 306 transitions. [2021-03-25 07:59:50,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 808 places, 952 transitions, 33804 flow [2021-03-25 07:59:52,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 805 places, 952 transitions, 32291 flow, removed 729 selfloop flow, removed 3 redundant places. [2021-03-25 07:59:52,886 INFO L241 Difference]: Finished difference. Result has 807 places, 939 transitions, 29876 flow [2021-03-25 07:59:52,886 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=27915, PETRI_DIFFERENCE_MINUEND_PLACES=796, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=925, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=887, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=29876, PETRI_PLACES=807, PETRI_TRANSITIONS=939} [2021-03-25 07:59:52,887 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 776 predicate places. [2021-03-25 07:59:52,887 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:52,887 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 807 places, 939 transitions, 29876 flow [2021-03-25 07:59:52,887 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 807 places, 939 transitions, 29876 flow [2021-03-25 07:59:52,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 807 places, 939 transitions, 29876 flow [2021-03-25 07:59:53,256 INFO L129 PetriNetUnfolder]: 488/1114 cut-off events. [2021-03-25 07:59:53,257 INFO L130 PetriNetUnfolder]: For 159864/159903 co-relation queries the response was YES. [2021-03-25 07:59:53,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18398 conditions, 1114 events. 488/1114 cut-off events. For 159864/159903 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 8383 event pairs, 0 based on Foata normal form. 10/1123 useless extension candidates. Maximal degree in co-relation 18000. Up to 345 conditions per place. [2021-03-25 07:59:53,300 INFO L142 LiptonReduction]: Number of co-enabled transitions 1048 [2021-03-25 07:59:53,405 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:53,406 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:53,406 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 519 [2021-03-25 07:59:53,406 INFO L480 AbstractCegarLoop]: Abstraction has has 807 places, 939 transitions, 29876 flow [2021-03-25 07:59:53,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:53,406 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:53,406 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:53,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-03-25 07:59:53,406 INFO L428 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:53,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:53,406 INFO L82 PathProgramCache]: Analyzing trace with hash 179047066, now seen corresponding path program 37 times [2021-03-25 07:59:53,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:53,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364531458] [2021-03-25 07:59:53,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:53,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:53,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:53,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:53,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:53,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:53,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:53,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:53,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:53,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:53,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 07:59:53,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:53,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:53,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:53,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:53,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:53,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:53,460 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:53,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:53,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:53,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364531458] [2021-03-25 07:59:53,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:53,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:59:53,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630523220] [2021-03-25 07:59:53,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:59:53,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:53,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:59:53,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:59:53,464 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 07:59:53,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 807 places, 939 transitions, 29876 flow. Second operand has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:53,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:53,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 07:59:53,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:54,435 INFO L129 PetriNetUnfolder]: 596/1317 cut-off events. [2021-03-25 07:59:54,435 INFO L130 PetriNetUnfolder]: For 189924/189924 co-relation queries the response was YES. [2021-03-25 07:59:54,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23593 conditions, 1317 events. 596/1317 cut-off events. For 189924/189924 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 9643 event pairs, 2 based on Foata normal form. 1/1318 useless extension candidates. Maximal degree in co-relation 23075. Up to 1121 conditions per place. [2021-03-25 07:59:54,470 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 913 selfloop transitions, 39 changer transitions 7/963 dead transitions. [2021-03-25 07:59:54,471 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 815 places, 963 transitions, 33907 flow [2021-03-25 07:59:54,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:59:54,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:59:54,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 278 transitions. [2021-03-25 07:59:54,472 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4174174174174174 [2021-03-25 07:59:54,472 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 278 transitions. [2021-03-25 07:59:54,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 278 transitions. [2021-03-25 07:59:54,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:54,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 278 transitions. [2021-03-25 07:59:54,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:54,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:54,472 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:54,473 INFO L185 Difference]: Start difference. First operand has 807 places, 939 transitions, 29876 flow. Second operand 9 states and 278 transitions. [2021-03-25 07:59:54,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 815 places, 963 transitions, 33907 flow [2021-03-25 07:59:56,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 812 places, 963 transitions, 32378 flow, removed 754 selfloop flow, removed 3 redundant places. [2021-03-25 07:59:56,639 INFO L241 Difference]: Finished difference. Result has 815 places, 946 transitions, 29772 flow [2021-03-25 07:59:56,640 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=28347, PETRI_DIFFERENCE_MINUEND_PLACES=804, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=939, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=905, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=29772, PETRI_PLACES=815, PETRI_TRANSITIONS=946} [2021-03-25 07:59:56,640 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 784 predicate places. [2021-03-25 07:59:56,640 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:59:56,640 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 815 places, 946 transitions, 29772 flow [2021-03-25 07:59:56,640 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 815 places, 946 transitions, 29772 flow [2021-03-25 07:59:56,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 815 places, 946 transitions, 29772 flow [2021-03-25 07:59:57,008 INFO L129 PetriNetUnfolder]: 492/1137 cut-off events. [2021-03-25 07:59:57,009 INFO L130 PetriNetUnfolder]: For 149211/149224 co-relation queries the response was YES. [2021-03-25 07:59:57,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18399 conditions, 1137 events. 492/1137 cut-off events. For 149211/149224 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 8660 event pairs, 0 based on Foata normal form. 8/1145 useless extension candidates. Maximal degree in co-relation 17997. Up to 346 conditions per place. [2021-03-25 07:59:57,055 INFO L142 LiptonReduction]: Number of co-enabled transitions 1050 [2021-03-25 07:59:57,152 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:59:57,153 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:59:57,153 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 513 [2021-03-25 07:59:57,153 INFO L480 AbstractCegarLoop]: Abstraction has has 815 places, 946 transitions, 29772 flow [2021-03-25 07:59:57,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.555555555555557) internal successors, (239), 9 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:57,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:59:57,153 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:59:57,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-03-25 07:59:57,153 INFO L428 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:59:57,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:59:57,153 INFO L82 PathProgramCache]: Analyzing trace with hash -239292366, now seen corresponding path program 38 times [2021-03-25 07:59:57,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:59:57,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354519504] [2021-03-25 07:59:57,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:59:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:59:57,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:57,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:57,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:57,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:57,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:57,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:57,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:57,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:57,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:57,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 07:59:57,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:57,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:59:57,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:57,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:59:57,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:59:57,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:59:57,219 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 07:59:57,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:59:57,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:59:57,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354519504] [2021-03-25 07:59:57,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:59:57,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:59:57,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024621449] [2021-03-25 07:59:57,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 07:59:57,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:59:57,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 07:59:57,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 07:59:57,222 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 07:59:57,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 815 places, 946 transitions, 29772 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:57,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:59:57,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 07:59:57,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:59:58,215 INFO L129 PetriNetUnfolder]: 602/1331 cut-off events. [2021-03-25 07:59:58,215 INFO L130 PetriNetUnfolder]: For 191583/191583 co-relation queries the response was YES. [2021-03-25 07:59:58,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23820 conditions, 1331 events. 602/1331 cut-off events. For 191583/191583 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 9722 event pairs, 2 based on Foata normal form. 1/1332 useless extension candidates. Maximal degree in co-relation 23298. Up to 1145 conditions per place. [2021-03-25 07:59:58,251 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 925 selfloop transitions, 36 changer transitions 6/971 dead transitions. [2021-03-25 07:59:58,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 824 places, 971 transitions, 34230 flow [2021-03-25 07:59:58,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 07:59:58,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 07:59:58,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2021-03-25 07:59:58,252 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41216216216216217 [2021-03-25 07:59:58,252 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 305 transitions. [2021-03-25 07:59:58,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 305 transitions. [2021-03-25 07:59:58,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:59:58,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 305 transitions. [2021-03-25 07:59:58,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.5) internal successors, (305), 10 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:58,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:58,253 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:59:58,253 INFO L185 Difference]: Start difference. First operand has 815 places, 946 transitions, 29772 flow. Second operand 10 states and 305 transitions. [2021-03-25 07:59:58,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 824 places, 971 transitions, 34230 flow [2021-03-25 08:00:00,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 819 places, 971 transitions, 33121 flow, removed 540 selfloop flow, removed 5 redundant places. [2021-03-25 08:00:00,493 INFO L241 Difference]: Finished difference. Result has 821 places, 957 transitions, 30591 flow [2021-03-25 08:00:00,494 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=28663, PETRI_DIFFERENCE_MINUEND_PLACES=810, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=918, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=30591, PETRI_PLACES=821, PETRI_TRANSITIONS=957} [2021-03-25 08:00:00,494 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 790 predicate places. [2021-03-25 08:00:00,494 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:00,494 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 821 places, 957 transitions, 30591 flow [2021-03-25 08:00:00,494 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 821 places, 957 transitions, 30591 flow [2021-03-25 08:00:00,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 821 places, 957 transitions, 30591 flow [2021-03-25 08:00:00,899 INFO L129 PetriNetUnfolder]: 498/1145 cut-off events. [2021-03-25 08:00:00,899 INFO L130 PetriNetUnfolder]: For 162935/162956 co-relation queries the response was YES. [2021-03-25 08:00:00,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18837 conditions, 1145 events. 498/1145 cut-off events. For 162935/162956 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 8596 event pairs, 0 based on Foata normal form. 10/1154 useless extension candidates. Maximal degree in co-relation 18434. Up to 351 conditions per place. [2021-03-25 08:00:00,945 INFO L142 LiptonReduction]: Number of co-enabled transitions 1054 [2021-03-25 08:00:01,045 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:01,045 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:01,045 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 551 [2021-03-25 08:00:01,045 INFO L480 AbstractCegarLoop]: Abstraction has has 821 places, 957 transitions, 30591 flow [2021-03-25 08:00:01,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:01,045 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:01,045 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:01,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-03-25 08:00:01,046 INFO L428 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:01,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:01,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1557847906, now seen corresponding path program 39 times [2021-03-25 08:00:01,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:01,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47487563] [2021-03-25 08:00:01,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:01,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:01,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:01,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:01,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:01,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:01,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:01,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:01,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:01,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:01,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:00:01,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:01,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:01,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:01,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:01,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:01,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:01,127 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:01,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:01,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:01,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47487563] [2021-03-25 08:00:01,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:01,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 08:00:01,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855052125] [2021-03-25 08:00:01,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:00:01,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:01,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:00:01,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:00:01,130 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 08:00:01,130 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 821 places, 957 transitions, 30591 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:01,130 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:01,131 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 08:00:01,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:02,309 INFO L129 PetriNetUnfolder]: 608/1341 cut-off events. [2021-03-25 08:00:02,310 INFO L130 PetriNetUnfolder]: For 204758/204758 co-relation queries the response was YES. [2021-03-25 08:00:02,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24285 conditions, 1341 events. 608/1341 cut-off events. For 204758/204758 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 9799 event pairs, 3 based on Foata normal form. 1/1342 useless extension candidates. Maximal degree in co-relation 23762. Up to 1085 conditions per place. [2021-03-25 08:00:02,349 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 871 selfloop transitions, 99 changer transitions 9/983 dead transitions. [2021-03-25 08:00:02,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 830 places, 983 transitions, 35105 flow [2021-03-25 08:00:02,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:00:02,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:00:02,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 08:00:02,352 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41486486486486485 [2021-03-25 08:00:02,352 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 08:00:02,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 08:00:02,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:02,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 08:00:02,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:02,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:02,353 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:02,353 INFO L185 Difference]: Start difference. First operand has 821 places, 957 transitions, 30591 flow. Second operand 10 states and 307 transitions. [2021-03-25 08:00:02,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 830 places, 983 transitions, 35105 flow [2021-03-25 08:00:05,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 825 places, 983 transitions, 33603 flow, removed 739 selfloop flow, removed 5 redundant places. [2021-03-25 08:00:05,020 INFO L241 Difference]: Finished difference. Result has 830 places, 964 transitions, 30762 flow [2021-03-25 08:00:05,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=29089, PETRI_DIFFERENCE_MINUEND_PLACES=816, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=863, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=30762, PETRI_PLACES=830, PETRI_TRANSITIONS=964} [2021-03-25 08:00:05,021 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 799 predicate places. [2021-03-25 08:00:05,021 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:05,021 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 830 places, 964 transitions, 30762 flow [2021-03-25 08:00:05,021 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 830 places, 964 transitions, 30762 flow [2021-03-25 08:00:05,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 830 places, 964 transitions, 30762 flow [2021-03-25 08:00:05,458 INFO L129 PetriNetUnfolder]: 502/1139 cut-off events. [2021-03-25 08:00:05,459 INFO L130 PetriNetUnfolder]: For 164787/164826 co-relation queries the response was YES. [2021-03-25 08:00:05,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18975 conditions, 1139 events. 502/1139 cut-off events. For 164787/164826 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 8593 event pairs, 0 based on Foata normal form. 10/1148 useless extension candidates. Maximal degree in co-relation 18568. Up to 354 conditions per place. [2021-03-25 08:00:05,507 INFO L142 LiptonReduction]: Number of co-enabled transitions 1054 [2021-03-25 08:00:05,615 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:05,615 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:05,615 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 594 [2021-03-25 08:00:05,616 INFO L480 AbstractCegarLoop]: Abstraction has has 830 places, 964 transitions, 30762 flow [2021-03-25 08:00:05,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:05,616 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:05,616 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:05,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-03-25 08:00:05,616 INFO L428 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:05,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:05,616 INFO L82 PathProgramCache]: Analyzing trace with hash 2047447270, now seen corresponding path program 40 times [2021-03-25 08:00:05,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:05,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700299877] [2021-03-25 08:00:05,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:05,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:05,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:05,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:05,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:05,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:05,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:05,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:05,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:05,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:05,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:00:05,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:05,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:05,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:05,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:05,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:05,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:05,689 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:05,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:05,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:05,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700299877] [2021-03-25 08:00:05,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:05,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 08:00:05,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103062884] [2021-03-25 08:00:05,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:00:05,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:05,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:00:05,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:00:05,693 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 08:00:05,693 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 830 places, 964 transitions, 30762 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:05,693 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:05,693 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 08:00:05,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:06,800 INFO L129 PetriNetUnfolder]: 612/1347 cut-off events. [2021-03-25 08:00:06,800 INFO L130 PetriNetUnfolder]: For 203098/203098 co-relation queries the response was YES. [2021-03-25 08:00:06,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24539 conditions, 1347 events. 612/1347 cut-off events. For 203098/203098 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 9865 event pairs, 5 based on Foata normal form. 1/1348 useless extension candidates. Maximal degree in co-relation 24012. Up to 1144 conditions per place. [2021-03-25 08:00:06,839 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 911 selfloop transitions, 66 changer transitions 8/989 dead transitions. [2021-03-25 08:00:06,840 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 839 places, 989 transitions, 35391 flow [2021-03-25 08:00:06,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:00:06,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:00:06,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2021-03-25 08:00:06,841 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41216216216216217 [2021-03-25 08:00:06,841 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 305 transitions. [2021-03-25 08:00:06,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 305 transitions. [2021-03-25 08:00:06,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:06,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 305 transitions. [2021-03-25 08:00:06,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.5) internal successors, (305), 10 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:06,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:06,842 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:06,842 INFO L185 Difference]: Start difference. First operand has 830 places, 964 transitions, 30762 flow. Second operand 10 states and 305 transitions. [2021-03-25 08:00:06,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 839 places, 989 transitions, 35391 flow [2021-03-25 08:00:09,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 834 places, 989 transitions, 34195 flow, removed 558 selfloop flow, removed 5 redundant places. [2021-03-25 08:00:09,512 INFO L241 Difference]: Finished difference. Result has 836 places, 973 transitions, 31596 flow [2021-03-25 08:00:09,512 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=29566, PETRI_DIFFERENCE_MINUEND_PLACES=825, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=906, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=31596, PETRI_PLACES=836, PETRI_TRANSITIONS=973} [2021-03-25 08:00:09,512 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 805 predicate places. [2021-03-25 08:00:09,512 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:09,512 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 836 places, 973 transitions, 31596 flow [2021-03-25 08:00:09,513 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 836 places, 973 transitions, 31596 flow [2021-03-25 08:00:09,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 836 places, 973 transitions, 31596 flow [2021-03-25 08:00:09,939 INFO L129 PetriNetUnfolder]: 507/1164 cut-off events. [2021-03-25 08:00:09,939 INFO L130 PetriNetUnfolder]: For 172607/172636 co-relation queries the response was YES. [2021-03-25 08:00:09,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19444 conditions, 1164 events. 507/1164 cut-off events. For 172607/172636 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 8849 event pairs, 0 based on Foata normal form. 8/1171 useless extension candidates. Maximal degree in co-relation 19036. Up to 358 conditions per place. [2021-03-25 08:00:09,990 INFO L142 LiptonReduction]: Number of co-enabled transitions 1056 [2021-03-25 08:00:10,097 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:10,098 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:10,098 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 586 [2021-03-25 08:00:10,098 INFO L480 AbstractCegarLoop]: Abstraction has has 836 places, 973 transitions, 31596 flow [2021-03-25 08:00:10,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:10,098 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:10,098 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:10,098 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-03-25 08:00:10,098 INFO L428 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:10,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:10,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1137110238, now seen corresponding path program 41 times [2021-03-25 08:00:10,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:10,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423844599] [2021-03-25 08:00:10,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:10,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:10,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:10,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:10,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:10,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:10,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:10,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:10,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:10,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:10,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:00:10,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:10,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:10,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:10,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:10,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:10,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:10,166 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:10,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:10,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:10,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423844599] [2021-03-25 08:00:10,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:10,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 08:00:10,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319959666] [2021-03-25 08:00:10,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:00:10,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:10,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:00:10,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:00:10,169 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 08:00:10,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 836 places, 973 transitions, 31596 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:10,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:10,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 08:00:10,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:11,352 INFO L129 PetriNetUnfolder]: 617/1353 cut-off events. [2021-03-25 08:00:11,352 INFO L130 PetriNetUnfolder]: For 217602/217602 co-relation queries the response was YES. [2021-03-25 08:00:11,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25013 conditions, 1353 events. 617/1353 cut-off events. For 217602/217602 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 9879 event pairs, 2 based on Foata normal form. 1/1354 useless extension candidates. Maximal degree in co-relation 24485. Up to 1144 conditions per place. [2021-03-25 08:00:11,384 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 927 selfloop transitions, 64 changer transitions 4/999 dead transitions. [2021-03-25 08:00:11,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 845 places, 999 transitions, 36290 flow [2021-03-25 08:00:11,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:00:11,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:00:11,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 08:00:11,385 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41486486486486485 [2021-03-25 08:00:11,385 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 08:00:11,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 08:00:11,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:11,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 08:00:11,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:11,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:11,386 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:11,386 INFO L185 Difference]: Start difference. First operand has 836 places, 973 transitions, 31596 flow. Second operand 10 states and 307 transitions. [2021-03-25 08:00:11,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 845 places, 999 transitions, 36290 flow [2021-03-25 08:00:13,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 842 places, 999 transitions, 34761 flow, removed 747 selfloop flow, removed 3 redundant places. [2021-03-25 08:00:14,011 INFO L241 Difference]: Finished difference. Result has 843 places, 985 transitions, 32188 flow [2021-03-25 08:00:14,011 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=30071, PETRI_DIFFERENCE_MINUEND_PLACES=833, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=973, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=917, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=32188, PETRI_PLACES=843, PETRI_TRANSITIONS=985} [2021-03-25 08:00:14,012 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 812 predicate places. [2021-03-25 08:00:14,012 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:14,012 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 843 places, 985 transitions, 32188 flow [2021-03-25 08:00:14,012 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 843 places, 985 transitions, 32188 flow [2021-03-25 08:00:14,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 843 places, 985 transitions, 32188 flow [2021-03-25 08:00:14,421 INFO L129 PetriNetUnfolder]: 514/1171 cut-off events. [2021-03-25 08:00:14,422 INFO L130 PetriNetUnfolder]: For 178295/178334 co-relation queries the response was YES. [2021-03-25 08:00:14,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19755 conditions, 1171 events. 514/1171 cut-off events. For 178295/178334 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 8904 event pairs, 0 based on Foata normal form. 10/1180 useless extension candidates. Maximal degree in co-relation 19346. Up to 363 conditions per place. [2021-03-25 08:00:14,475 INFO L142 LiptonReduction]: Number of co-enabled transitions 1064 [2021-03-25 08:00:14,616 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:14,616 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:14,616 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 604 [2021-03-25 08:00:14,616 INFO L480 AbstractCegarLoop]: Abstraction has has 843 places, 985 transitions, 32188 flow [2021-03-25 08:00:14,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:14,616 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:14,616 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:14,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-03-25 08:00:14,616 INFO L428 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:14,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:14,617 INFO L82 PathProgramCache]: Analyzing trace with hash -2007877688, now seen corresponding path program 42 times [2021-03-25 08:00:14,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:14,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710487738] [2021-03-25 08:00:14,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:14,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:14,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:14,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:14,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:14,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:14,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:14,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:14,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:14,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:14,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:00:14,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:14,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:14,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:14,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:14,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:14,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:14,686 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:14,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:14,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710487738] [2021-03-25 08:00:14,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:14,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 08:00:14,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419906357] [2021-03-25 08:00:14,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:00:14,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:14,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:00:14,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:00:14,690 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 08:00:14,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 985 transitions, 32188 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:14,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:14,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 08:00:14,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:15,827 INFO L129 PetriNetUnfolder]: 626/1374 cut-off events. [2021-03-25 08:00:15,828 INFO L130 PetriNetUnfolder]: For 224711/224711 co-relation queries the response was YES. [2021-03-25 08:00:15,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25612 conditions, 1374 events. 626/1374 cut-off events. For 224711/224711 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 10076 event pairs, 2 based on Foata normal form. 1/1375 useless extension candidates. Maximal degree in co-relation 25082. Up to 1187 conditions per place. [2021-03-25 08:00:15,869 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 968 selfloop transitions, 36 changer transitions 4/1012 dead transitions. [2021-03-25 08:00:15,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 852 places, 1012 transitions, 37384 flow [2021-03-25 08:00:15,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:00:15,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:00:15,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2021-03-25 08:00:15,870 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41216216216216217 [2021-03-25 08:00:15,870 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 305 transitions. [2021-03-25 08:00:15,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 305 transitions. [2021-03-25 08:00:15,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:15,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 305 transitions. [2021-03-25 08:00:15,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.5) internal successors, (305), 10 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:15,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:15,871 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:15,871 INFO L185 Difference]: Start difference. First operand has 843 places, 985 transitions, 32188 flow. Second operand 10 states and 305 transitions. [2021-03-25 08:00:15,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 852 places, 1012 transitions, 37384 flow [2021-03-25 08:00:18,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 848 places, 1012 transitions, 35300 flow, removed 1031 selfloop flow, removed 4 redundant places. [2021-03-25 08:00:18,353 INFO L241 Difference]: Finished difference. Result has 850 places, 1000 transitions, 32699 flow [2021-03-25 08:00:18,354 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=30592, PETRI_DIFFERENCE_MINUEND_PLACES=839, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=985, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=32699, PETRI_PLACES=850, PETRI_TRANSITIONS=1000} [2021-03-25 08:00:18,354 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 819 predicate places. [2021-03-25 08:00:18,354 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:18,354 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 850 places, 1000 transitions, 32699 flow [2021-03-25 08:00:18,354 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 850 places, 1000 transitions, 32699 flow [2021-03-25 08:00:18,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 850 places, 1000 transitions, 32699 flow [2021-03-25 08:00:18,791 INFO L129 PetriNetUnfolder]: 523/1194 cut-off events. [2021-03-25 08:00:18,791 INFO L130 PetriNetUnfolder]: For 180198/180219 co-relation queries the response was YES. [2021-03-25 08:00:18,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20048 conditions, 1194 events. 523/1194 cut-off events. For 180198/180219 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 9102 event pairs, 0 based on Foata normal form. 10/1203 useless extension candidates. Maximal degree in co-relation 19637. Up to 366 conditions per place. [2021-03-25 08:00:18,840 INFO L142 LiptonReduction]: Number of co-enabled transitions 1080 [2021-03-25 08:00:18,961 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:18,961 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:18,961 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 607 [2021-03-25 08:00:18,961 INFO L480 AbstractCegarLoop]: Abstraction has has 850 places, 1000 transitions, 32699 flow [2021-03-25 08:00:18,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:18,961 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:18,961 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:18,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-03-25 08:00:18,961 INFO L428 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:18,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:18,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1779468578, now seen corresponding path program 43 times [2021-03-25 08:00:18,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:18,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971714316] [2021-03-25 08:00:18,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:18,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:18,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:18,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:18,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:18,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:18,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:18,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:18,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:19,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:19,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:00:19,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:19,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:19,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:19,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:19,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:19,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:19,055 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:19,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:19,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971714316] [2021-03-25 08:00:19,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:19,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 08:00:19,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671576808] [2021-03-25 08:00:19,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:00:19,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:19,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:00:19,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:00:19,059 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 08:00:19,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 850 places, 1000 transitions, 32699 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:19,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:19,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 08:00:19,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:20,084 INFO L129 PetriNetUnfolder]: 633/1386 cut-off events. [2021-03-25 08:00:20,084 INFO L130 PetriNetUnfolder]: For 227159/227159 co-relation queries the response was YES. [2021-03-25 08:00:20,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25698 conditions, 1386 events. 633/1386 cut-off events. For 227159/227159 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 10153 event pairs, 1 based on Foata normal form. 1/1387 useless extension candidates. Maximal degree in co-relation 25166. Up to 1171 conditions per place. [2021-03-25 08:00:20,125 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 960 selfloop transitions, 55 changer transitions 6/1025 dead transitions. [2021-03-25 08:00:20,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 859 places, 1025 transitions, 37493 flow [2021-03-25 08:00:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:00:20,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:00:20,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 08:00:20,126 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4135135135135135 [2021-03-25 08:00:20,126 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 08:00:20,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 08:00:20,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:20,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 08:00:20,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:20,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:20,127 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:20,127 INFO L185 Difference]: Start difference. First operand has 850 places, 1000 transitions, 32699 flow. Second operand 10 states and 306 transitions. [2021-03-25 08:00:20,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 859 places, 1025 transitions, 37493 flow [2021-03-25 08:00:22,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 855 places, 1025 transitions, 35913 flow, removed 781 selfloop flow, removed 4 redundant places. [2021-03-25 08:00:22,606 INFO L241 Difference]: Finished difference. Result has 856 places, 1010 transitions, 32952 flow [2021-03-25 08:00:22,607 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=31119, PETRI_DIFFERENCE_MINUEND_PLACES=846, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=951, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=32952, PETRI_PLACES=856, PETRI_TRANSITIONS=1010} [2021-03-25 08:00:22,607 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 825 predicate places. [2021-03-25 08:00:22,607 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:22,607 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 856 places, 1010 transitions, 32952 flow [2021-03-25 08:00:22,607 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 856 places, 1010 transitions, 32952 flow [2021-03-25 08:00:22,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 856 places, 1010 transitions, 32952 flow [2021-03-25 08:00:23,085 INFO L129 PetriNetUnfolder]: 529/1197 cut-off events. [2021-03-25 08:00:23,085 INFO L130 PetriNetUnfolder]: For 173994/174008 co-relation queries the response was YES. [2021-03-25 08:00:23,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20200 conditions, 1197 events. 529/1197 cut-off events. For 173994/174008 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 9106 event pairs, 0 based on Foata normal form. 8/1204 useless extension candidates. Maximal degree in co-relation 19788. Up to 369 conditions per place. [2021-03-25 08:00:23,136 INFO L142 LiptonReduction]: Number of co-enabled transitions 1088 [2021-03-25 08:00:23,261 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:23,261 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:23,261 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 654 [2021-03-25 08:00:23,261 INFO L480 AbstractCegarLoop]: Abstraction has has 856 places, 1010 transitions, 32952 flow [2021-03-25 08:00:23,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:23,261 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:23,261 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:23,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-03-25 08:00:23,262 INFO L428 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:23,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:23,262 INFO L82 PathProgramCache]: Analyzing trace with hash 558042274, now seen corresponding path program 44 times [2021-03-25 08:00:23,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:23,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654257504] [2021-03-25 08:00:23,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:23,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:23,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:23,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:23,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:23,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:23,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:23,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:23,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:23,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:23,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:00:23,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:23,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:23,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:23,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:23,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:23,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:23,337 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:23,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:23,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654257504] [2021-03-25 08:00:23,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:23,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 08:00:23,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075692117] [2021-03-25 08:00:23,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:00:23,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:23,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:00:23,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:00:23,340 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 08:00:23,340 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 856 places, 1010 transitions, 32952 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:23,340 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:23,340 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 08:00:23,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:24,508 INFO L129 PetriNetUnfolder]: 639/1400 cut-off events. [2021-03-25 08:00:24,508 INFO L130 PetriNetUnfolder]: For 228142/228142 co-relation queries the response was YES. [2021-03-25 08:00:24,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25982 conditions, 1400 events. 639/1400 cut-off events. For 228142/228142 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 10295 event pairs, 2 based on Foata normal form. 1/1401 useless extension candidates. Maximal degree in co-relation 25449. Up to 1209 conditions per place. [2021-03-25 08:00:24,548 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 990 selfloop transitions, 35 changer transitions 6/1035 dead transitions. [2021-03-25 08:00:24,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 865 places, 1035 transitions, 37948 flow [2021-03-25 08:00:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:00:24,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:00:24,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2021-03-25 08:00:24,549 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41216216216216217 [2021-03-25 08:00:24,549 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 305 transitions. [2021-03-25 08:00:24,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 305 transitions. [2021-03-25 08:00:24,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:24,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 305 transitions. [2021-03-25 08:00:24,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.5) internal successors, (305), 10 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:24,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:24,550 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:24,550 INFO L185 Difference]: Start difference. First operand has 856 places, 1010 transitions, 32952 flow. Second operand 10 states and 305 transitions. [2021-03-25 08:00:24,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 865 places, 1035 transitions, 37948 flow [2021-03-25 08:00:27,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 859 places, 1035 transitions, 36347 flow, removed 767 selfloop flow, removed 6 redundant places. [2021-03-25 08:00:27,519 INFO L241 Difference]: Finished difference. Result has 861 places, 1021 transitions, 33603 flow [2021-03-25 08:00:27,520 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=31497, PETRI_DIFFERENCE_MINUEND_PLACES=850, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1010, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=983, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=33603, PETRI_PLACES=861, PETRI_TRANSITIONS=1021} [2021-03-25 08:00:27,520 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 830 predicate places. [2021-03-25 08:00:27,520 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:27,520 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 861 places, 1021 transitions, 33603 flow [2021-03-25 08:00:27,520 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 861 places, 1021 transitions, 33603 flow [2021-03-25 08:00:27,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 861 places, 1021 transitions, 33603 flow [2021-03-25 08:00:27,968 INFO L129 PetriNetUnfolder]: 535/1214 cut-off events. [2021-03-25 08:00:27,968 INFO L130 PetriNetUnfolder]: For 170085/170122 co-relation queries the response was YES. [2021-03-25 08:00:27,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20575 conditions, 1214 events. 535/1214 cut-off events. For 170085/170122 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 9248 event pairs, 1 based on Foata normal form. 10/1223 useless extension candidates. Maximal degree in co-relation 20161. Up to 372 conditions per place. [2021-03-25 08:00:28,020 INFO L142 LiptonReduction]: Number of co-enabled transitions 1094 [2021-03-25 08:00:28,143 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:28,143 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:28,143 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 623 [2021-03-25 08:00:28,143 INFO L480 AbstractCegarLoop]: Abstraction has has 861 places, 1021 transitions, 33603 flow [2021-03-25 08:00:28,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:28,143 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:28,144 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:28,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-03-25 08:00:28,144 INFO L428 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:28,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:28,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1428809724, now seen corresponding path program 45 times [2021-03-25 08:00:28,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:28,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584242953] [2021-03-25 08:00:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:28,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:28,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:28,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:28,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:28,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:28,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:28,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:28,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:28,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:28,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:00:28,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:28,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:28,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:28,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:28,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:28,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:28,206 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:28,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:28,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584242953] [2021-03-25 08:00:28,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:28,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 08:00:28,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513430156] [2021-03-25 08:00:28,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:00:28,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:28,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:00:28,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:00:28,210 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 08:00:28,211 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 861 places, 1021 transitions, 33603 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:28,211 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:28,211 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 08:00:28,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:29,368 INFO L129 PetriNetUnfolder]: 645/1413 cut-off events. [2021-03-25 08:00:29,369 INFO L130 PetriNetUnfolder]: For 224365/224365 co-relation queries the response was YES. [2021-03-25 08:00:29,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26295 conditions, 1413 events. 645/1413 cut-off events. For 224365/224365 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 10429 event pairs, 3 based on Foata normal form. 1/1414 useless extension candidates. Maximal degree in co-relation 25760. Up to 1216 conditions per place. [2021-03-25 08:00:29,411 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 998 selfloop transitions, 39 changer transitions 6/1047 dead transitions. [2021-03-25 08:00:29,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 870 places, 1047 transitions, 38507 flow [2021-03-25 08:00:29,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:00:29,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:00:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 08:00:29,412 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4135135135135135 [2021-03-25 08:00:29,412 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 08:00:29,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 08:00:29,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:29,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 08:00:29,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:29,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:29,413 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:29,413 INFO L185 Difference]: Start difference. First operand has 861 places, 1021 transitions, 33603 flow. Second operand 10 states and 306 transitions. [2021-03-25 08:00:29,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 870 places, 1047 transitions, 38507 flow [2021-03-25 08:00:31,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 865 places, 1047 transitions, 36929 flow, removed 777 selfloop flow, removed 5 redundant places. [2021-03-25 08:00:31,824 INFO L241 Difference]: Finished difference. Result has 867 places, 1032 transitions, 34185 flow [2021-03-25 08:00:31,824 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=32025, PETRI_DIFFERENCE_MINUEND_PLACES=856, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1021, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=990, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=34185, PETRI_PLACES=867, PETRI_TRANSITIONS=1032} [2021-03-25 08:00:31,825 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 836 predicate places. [2021-03-25 08:00:31,825 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:31,825 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 867 places, 1032 transitions, 34185 flow [2021-03-25 08:00:31,825 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 867 places, 1032 transitions, 34185 flow [2021-03-25 08:00:31,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 867 places, 1032 transitions, 34185 flow [2021-03-25 08:00:32,284 INFO L129 PetriNetUnfolder]: 541/1220 cut-off events. [2021-03-25 08:00:32,285 INFO L130 PetriNetUnfolder]: For 184485/184498 co-relation queries the response was YES. [2021-03-25 08:00:32,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20894 conditions, 1220 events. 541/1220 cut-off events. For 184485/184498 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 9282 event pairs, 0 based on Foata normal form. 8/1228 useless extension candidates. Maximal degree in co-relation 20479. Up to 377 conditions per place. [2021-03-25 08:00:32,342 INFO L142 LiptonReduction]: Number of co-enabled transitions 1102 [2021-03-25 08:00:32,480 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:32,480 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:32,480 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 655 [2021-03-25 08:00:32,481 INFO L480 AbstractCegarLoop]: Abstraction has has 867 places, 1032 transitions, 34185 flow [2021-03-25 08:00:32,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:32,481 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:32,481 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:32,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-03-25 08:00:32,481 INFO L428 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:32,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:32,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1439513352, now seen corresponding path program 46 times [2021-03-25 08:00:32,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:32,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57246219] [2021-03-25 08:00:32,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:32,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:32,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:32,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:32,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:32,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:32,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:32,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:32,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:32,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:32,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:00:32,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:32,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:32,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:32,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:32,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:32,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:32,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:32,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:32,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:32,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57246219] [2021-03-25 08:00:32,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:32,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 08:00:32,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487140085] [2021-03-25 08:00:32,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:00:32,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:32,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:00:32,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:00:32,550 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 74 [2021-03-25 08:00:32,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 867 places, 1032 transitions, 34185 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:32,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:32,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 74 [2021-03-25 08:00:32,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:33,651 INFO L129 PetriNetUnfolder]: 648/1425 cut-off events. [2021-03-25 08:00:33,651 INFO L130 PetriNetUnfolder]: For 219167/219167 co-relation queries the response was YES. [2021-03-25 08:00:33,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26107 conditions, 1425 events. 648/1425 cut-off events. For 219167/219167 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 10601 event pairs, 5 based on Foata normal form. 1/1426 useless extension candidates. Maximal degree in co-relation 25571. Up to 1178 conditions per place. [2021-03-25 08:00:33,690 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 980 selfloop transitions, 68 changer transitions 11/1063 dead transitions. [2021-03-25 08:00:33,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 876 places, 1063 transitions, 39280 flow [2021-03-25 08:00:33,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:00:33,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:00:33,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 08:00:33,691 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41486486486486485 [2021-03-25 08:00:33,691 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 08:00:33,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 08:00:33,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:33,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 08:00:33,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:33,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:33,692 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:33,692 INFO L185 Difference]: Start difference. First operand has 867 places, 1032 transitions, 34185 flow. Second operand 10 states and 307 transitions. [2021-03-25 08:00:33,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 876 places, 1063 transitions, 39280 flow [2021-03-25 08:00:36,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 872 places, 1063 transitions, 37668 flow, removed 794 selfloop flow, removed 4 redundant places. [2021-03-25 08:00:36,202 INFO L241 Difference]: Finished difference. Result has 875 places, 1042 transitions, 34341 flow [2021-03-25 08:00:36,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=32573, PETRI_DIFFERENCE_MINUEND_PLACES=863, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1032, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=34341, PETRI_PLACES=875, PETRI_TRANSITIONS=1042} [2021-03-25 08:00:36,202 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 844 predicate places. [2021-03-25 08:00:36,202 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:36,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 875 places, 1042 transitions, 34341 flow [2021-03-25 08:00:36,203 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 875 places, 1042 transitions, 34341 flow [2021-03-25 08:00:36,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 874 places, 1042 transitions, 34341 flow [2021-03-25 08:00:36,663 INFO L129 PetriNetUnfolder]: 543/1238 cut-off events. [2021-03-25 08:00:36,663 INFO L130 PetriNetUnfolder]: For 179680/179719 co-relation queries the response was YES. [2021-03-25 08:00:36,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20387 conditions, 1238 events. 543/1238 cut-off events. For 179680/179719 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 9468 event pairs, 0 based on Foata normal form. 10/1248 useless extension candidates. Maximal degree in co-relation 19970. Up to 372 conditions per place. [2021-03-25 08:00:36,724 INFO L142 LiptonReduction]: Number of co-enabled transitions 1114 [2021-03-25 08:00:37,109 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 08:00:37,110 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-25 08:00:37,110 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 908 [2021-03-25 08:00:37,110 INFO L480 AbstractCegarLoop]: Abstraction has has 874 places, 1042 transitions, 34432 flow [2021-03-25 08:00:37,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:37,110 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:37,110 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:37,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-03-25 08:00:37,110 INFO L428 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:37,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:37,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1136681536, now seen corresponding path program 47 times [2021-03-25 08:00:37,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:37,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249056143] [2021-03-25 08:00:37,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:37,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:37,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:37,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:37,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:37,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:37,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:37,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:37,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:37,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:37,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:00:37,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:37,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:37,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:37,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:37,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:37,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:37,183 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:37,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:37,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:37,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249056143] [2021-03-25 08:00:37,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:37,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 08:00:37,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084504070] [2021-03-25 08:00:37,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:00:37,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:37,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:00:37,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:00:37,186 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 83 [2021-03-25 08:00:37,186 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 874 places, 1042 transitions, 34432 flow. Second operand has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:37,186 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:37,186 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 83 [2021-03-25 08:00:37,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:38,475 INFO L129 PetriNetUnfolder]: 650/1428 cut-off events. [2021-03-25 08:00:38,475 INFO L130 PetriNetUnfolder]: For 226160/226160 co-relation queries the response was YES. [2021-03-25 08:00:38,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25855 conditions, 1428 events. 650/1428 cut-off events. For 226160/226160 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 10652 event pairs, 1 based on Foata normal form. 1/1427 useless extension candidates. Maximal degree in co-relation 25317. Up to 1190 conditions per place. [2021-03-25 08:00:38,515 INFO L132 encePairwiseOnDemand]: 73/83 looper letters, 975 selfloop transitions, 78 changer transitions 10/1067 dead transitions. [2021-03-25 08:00:38,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 883 places, 1067 transitions, 38803 flow [2021-03-25 08:00:38,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:00:38,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:00:38,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 315 transitions. [2021-03-25 08:00:38,516 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3795180722891566 [2021-03-25 08:00:38,516 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 315 transitions. [2021-03-25 08:00:38,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 315 transitions. [2021-03-25 08:00:38,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:38,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 315 transitions. [2021-03-25 08:00:38,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.5) internal successors, (315), 10 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:38,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:38,517 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:38,517 INFO L185 Difference]: Start difference. First operand has 874 places, 1042 transitions, 34432 flow. Second operand 10 states and 315 transitions. [2021-03-25 08:00:38,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 883 places, 1067 transitions, 38803 flow [2021-03-25 08:00:40,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 872 places, 1067 transitions, 33357 flow, removed 2677 selfloop flow, removed 11 redundant places. [2021-03-25 08:00:40,926 INFO L241 Difference]: Finished difference. Result has 878 places, 1048 transitions, 30283 flow [2021-03-25 08:00:40,926 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=28992, PETRI_DIFFERENCE_MINUEND_PLACES=863, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1042, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=966, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=30283, PETRI_PLACES=878, PETRI_TRANSITIONS=1048} [2021-03-25 08:00:40,926 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 847 predicate places. [2021-03-25 08:00:40,927 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:40,927 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 878 places, 1048 transitions, 30283 flow [2021-03-25 08:00:40,927 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 878 places, 1048 transitions, 30283 flow [2021-03-25 08:00:40,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 878 places, 1048 transitions, 30283 flow [2021-03-25 08:00:41,327 INFO L129 PetriNetUnfolder]: 545/1241 cut-off events. [2021-03-25 08:00:41,328 INFO L130 PetriNetUnfolder]: For 162782/162795 co-relation queries the response was YES. [2021-03-25 08:00:41,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18422 conditions, 1241 events. 545/1241 cut-off events. For 162782/162795 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 9552 event pairs, 0 based on Foata normal form. 8/1245 useless extension candidates. Maximal degree in co-relation 18002. Up to 307 conditions per place. [2021-03-25 08:00:41,378 INFO L142 LiptonReduction]: Number of co-enabled transitions 1110 [2021-03-25 08:00:41,505 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:41,505 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:41,505 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 578 [2021-03-25 08:00:41,505 INFO L480 AbstractCegarLoop]: Abstraction has has 878 places, 1048 transitions, 30283 flow [2021-03-25 08:00:41,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 26.4) internal successors, (264), 10 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:41,505 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:41,505 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:41,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-03-25 08:00:41,506 INFO L428 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:41,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:41,506 INFO L82 PathProgramCache]: Analyzing trace with hash 950857655, now seen corresponding path program 1 times [2021-03-25 08:00:41,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:41,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007213882] [2021-03-25 08:00:41,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:41,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:41,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:41,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:41,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:41,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:41,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:41,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:41,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:41,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:41,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:41,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:41,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:41,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:41,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:41,550 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:41,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:41,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:41,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007213882] [2021-03-25 08:00:41,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:41,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:00:41,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691448706] [2021-03-25 08:00:41,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:00:41,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:41,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:00:41,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:00:41,553 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2021-03-25 08:00:41,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 878 places, 1048 transitions, 30283 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:41,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:41,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2021-03-25 08:00:41,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:42,512 INFO L129 PetriNetUnfolder]: 550/1237 cut-off events. [2021-03-25 08:00:42,512 INFO L130 PetriNetUnfolder]: For 170921/170927 co-relation queries the response was YES. [2021-03-25 08:00:42,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20115 conditions, 1237 events. 550/1237 cut-off events. For 170921/170927 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 9268 event pairs, 1 based on Foata normal form. 7/1240 useless extension candidates. Maximal degree in co-relation 19574. Up to 1039 conditions per place. [2021-03-25 08:00:42,547 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 981 selfloop transitions, 62 changer transitions 5/1053 dead transitions. [2021-03-25 08:00:42,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 885 places, 1053 transitions, 32595 flow [2021-03-25 08:00:42,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:00:42,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:00:42,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 267 transitions. [2021-03-25 08:00:42,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40210843373493976 [2021-03-25 08:00:42,548 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 267 transitions. [2021-03-25 08:00:42,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 267 transitions. [2021-03-25 08:00:42,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:42,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 267 transitions. [2021-03-25 08:00:42,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:42,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:42,549 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:42,549 INFO L185 Difference]: Start difference. First operand has 878 places, 1048 transitions, 30283 flow. Second operand 8 states and 267 transitions. [2021-03-25 08:00:42,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 885 places, 1053 transitions, 32595 flow [2021-03-25 08:00:44,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 873 places, 1053 transitions, 31486 flow, removed 463 selfloop flow, removed 12 redundant places. [2021-03-25 08:00:44,714 INFO L241 Difference]: Finished difference. Result has 875 places, 1044 transitions, 29210 flow [2021-03-25 08:00:44,714 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=29180, PETRI_DIFFERENCE_MINUEND_PLACES=866, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=986, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=29210, PETRI_PLACES=875, PETRI_TRANSITIONS=1044} [2021-03-25 08:00:44,715 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 844 predicate places. [2021-03-25 08:00:44,715 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:44,715 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 875 places, 1044 transitions, 29210 flow [2021-03-25 08:00:44,715 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 875 places, 1044 transitions, 29210 flow [2021-03-25 08:00:44,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 875 places, 1044 transitions, 29210 flow [2021-03-25 08:00:45,111 INFO L129 PetriNetUnfolder]: 543/1225 cut-off events. [2021-03-25 08:00:45,111 INFO L130 PetriNetUnfolder]: For 142588/142601 co-relation queries the response was YES. [2021-03-25 08:00:45,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17824 conditions, 1225 events. 543/1225 cut-off events. For 142588/142601 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 9338 event pairs, 0 based on Foata normal form. 8/1228 useless extension candidates. Maximal degree in co-relation 17408. Up to 302 conditions per place. [2021-03-25 08:00:45,162 INFO L142 LiptonReduction]: Number of co-enabled transitions 1108 [2021-03-25 08:00:45,284 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:45,284 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:45,284 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 569 [2021-03-25 08:00:45,284 INFO L480 AbstractCegarLoop]: Abstraction has has 875 places, 1044 transitions, 29210 flow [2021-03-25 08:00:45,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:45,284 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:45,285 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:45,285 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-03-25 08:00:45,285 INFO L428 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:45,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:45,285 INFO L82 PathProgramCache]: Analyzing trace with hash 470977451, now seen corresponding path program 2 times [2021-03-25 08:00:45,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:45,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582915964] [2021-03-25 08:00:45,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:45,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:45,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:45,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:45,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:45,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:45,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:45,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:45,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:45,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:45,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:45,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:45,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:45,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:45,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:45,339 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:45,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:45,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:45,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582915964] [2021-03-25 08:00:45,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:45,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 08:00:45,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486915002] [2021-03-25 08:00:45,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:00:45,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:45,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:00:45,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:00:45,343 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2021-03-25 08:00:45,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 875 places, 1044 transitions, 29210 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:45,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:45,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2021-03-25 08:00:45,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:46,277 INFO L129 PetriNetUnfolder]: 549/1233 cut-off events. [2021-03-25 08:00:46,277 INFO L130 PetriNetUnfolder]: For 158803/158815 co-relation queries the response was YES. [2021-03-25 08:00:46,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19686 conditions, 1233 events. 549/1233 cut-off events. For 158803/158815 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 9185 event pairs, 0 based on Foata normal form. 9/1238 useless extension candidates. Maximal degree in co-relation 19210. Up to 1056 conditions per place. [2021-03-25 08:00:46,313 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 1006 selfloop transitions, 36 changer transitions 2/1049 dead transitions. [2021-03-25 08:00:46,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 881 places, 1049 transitions, 31820 flow [2021-03-25 08:00:46,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:00:46,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:00:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 08:00:46,314 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4027538726333907 [2021-03-25 08:00:46,314 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 08:00:46,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 08:00:46,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:46,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 08:00:46,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:46,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:46,315 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:46,315 INFO L185 Difference]: Start difference. First operand has 875 places, 1044 transitions, 29210 flow. Second operand 7 states and 234 transitions. [2021-03-25 08:00:46,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 881 places, 1049 transitions, 31820 flow [2021-03-25 08:00:48,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 870 places, 1049 transitions, 31650 flow, removed 2 selfloop flow, removed 11 redundant places. [2021-03-25 08:00:48,400 INFO L241 Difference]: Finished difference. Result has 873 places, 1045 transitions, 29324 flow [2021-03-25 08:00:48,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=29040, PETRI_DIFFERENCE_MINUEND_PLACES=864, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1044, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1008, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29324, PETRI_PLACES=873, PETRI_TRANSITIONS=1045} [2021-03-25 08:00:48,401 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 842 predicate places. [2021-03-25 08:00:48,401 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:48,401 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 873 places, 1045 transitions, 29324 flow [2021-03-25 08:00:48,401 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 873 places, 1045 transitions, 29324 flow [2021-03-25 08:00:48,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 873 places, 1045 transitions, 29324 flow [2021-03-25 08:00:48,792 INFO L129 PetriNetUnfolder]: 543/1223 cut-off events. [2021-03-25 08:00:48,792 INFO L130 PetriNetUnfolder]: For 146144/146171 co-relation queries the response was YES. [2021-03-25 08:00:48,821 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17893 conditions, 1223 events. 543/1223 cut-off events. For 146144/146171 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 9314 event pairs, 0 based on Foata normal form. 8/1227 useless extension candidates. Maximal degree in co-relation 17476. Up to 302 conditions per place. [2021-03-25 08:00:48,844 INFO L142 LiptonReduction]: Number of co-enabled transitions 1108 [2021-03-25 08:00:48,970 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:48,970 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:48,970 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 569 [2021-03-25 08:00:48,970 INFO L480 AbstractCegarLoop]: Abstraction has has 873 places, 1045 transitions, 29324 flow [2021-03-25 08:00:48,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:48,971 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:48,971 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:48,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-03-25 08:00:48,971 INFO L428 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:48,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:48,971 INFO L82 PathProgramCache]: Analyzing trace with hash -2106240785, now seen corresponding path program 3 times [2021-03-25 08:00:48,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:48,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616930578] [2021-03-25 08:00:48,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:48,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:48,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:48,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:48,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:48,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:48,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:48,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:48,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:48,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:48,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:48,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:48,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:49,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:49,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:49,015 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:49,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:49,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:49,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616930578] [2021-03-25 08:00:49,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:49,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:00:49,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463944863] [2021-03-25 08:00:49,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:00:49,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:49,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:00:49,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:00:49,018 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2021-03-25 08:00:49,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 873 places, 1045 transitions, 29324 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:49,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:49,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2021-03-25 08:00:49,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:49,963 INFO L129 PetriNetUnfolder]: 548/1229 cut-off events. [2021-03-25 08:00:49,964 INFO L130 PetriNetUnfolder]: For 156534/156546 co-relation queries the response was YES. [2021-03-25 08:00:49,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19575 conditions, 1229 events. 548/1229 cut-off events. For 156534/156546 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 9179 event pairs, 0 based on Foata normal form. 13/1238 useless extension candidates. Maximal degree in co-relation 19115. Up to 1035 conditions per place. [2021-03-25 08:00:50,004 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 974 selfloop transitions, 66 changer transitions 4/1049 dead transitions. [2021-03-25 08:00:50,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 880 places, 1049 transitions, 31588 flow [2021-03-25 08:00:50,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:00:50,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:00:50,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 266 transitions. [2021-03-25 08:00:50,005 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4006024096385542 [2021-03-25 08:00:50,005 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 266 transitions. [2021-03-25 08:00:50,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 266 transitions. [2021-03-25 08:00:50,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:50,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 266 transitions. [2021-03-25 08:00:50,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.25) internal successors, (266), 8 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:50,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:50,006 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:50,006 INFO L185 Difference]: Start difference. First operand has 873 places, 1045 transitions, 29324 flow. Second operand 8 states and 266 transitions. [2021-03-25 08:00:50,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 880 places, 1049 transitions, 31588 flow [2021-03-25 08:00:52,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 876 places, 1049 transitions, 31367 flow, removed 84 selfloop flow, removed 4 redundant places. [2021-03-25 08:00:52,044 INFO L241 Difference]: Finished difference. Result has 878 places, 1042 transitions, 29207 flow [2021-03-25 08:00:52,045 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=29103, PETRI_DIFFERENCE_MINUEND_PLACES=869, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1045, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=979, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=29207, PETRI_PLACES=878, PETRI_TRANSITIONS=1042} [2021-03-25 08:00:52,045 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 847 predicate places. [2021-03-25 08:00:52,045 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:52,045 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 878 places, 1042 transitions, 29207 flow [2021-03-25 08:00:52,045 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 878 places, 1042 transitions, 29207 flow [2021-03-25 08:00:52,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 878 places, 1042 transitions, 29207 flow [2021-03-25 08:00:52,433 INFO L129 PetriNetUnfolder]: 542/1218 cut-off events. [2021-03-25 08:00:52,433 INFO L130 PetriNetUnfolder]: For 146306/146327 co-relation queries the response was YES. [2021-03-25 08:00:52,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17825 conditions, 1218 events. 542/1218 cut-off events. For 146306/146327 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 9241 event pairs, 0 based on Foata normal form. 10/1224 useless extension candidates. Maximal degree in co-relation 17407. Up to 302 conditions per place. [2021-03-25 08:00:52,482 INFO L142 LiptonReduction]: Number of co-enabled transitions 1108 [2021-03-25 08:00:52,599 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:52,600 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:52,600 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 555 [2021-03-25 08:00:52,600 INFO L480 AbstractCegarLoop]: Abstraction has has 878 places, 1042 transitions, 29207 flow [2021-03-25 08:00:52,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:52,600 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:52,600 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:52,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-03-25 08:00:52,600 INFO L428 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:52,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:52,600 INFO L82 PathProgramCache]: Analyzing trace with hash 307115501, now seen corresponding path program 1 times [2021-03-25 08:00:52,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:52,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005232148] [2021-03-25 08:00:52,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:52,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:52,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:52,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:52,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:52,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:52,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:52,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:52,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:52,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:52,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:00:52,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:52,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:52,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:52,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:52,646 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:52,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:52,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:52,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005232148] [2021-03-25 08:00:52,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:52,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:00:52,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350353672] [2021-03-25 08:00:52,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:00:52,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:52,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:00:52,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:00:52,649 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2021-03-25 08:00:52,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 878 places, 1042 transitions, 29207 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:52,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:52,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2021-03-25 08:00:52,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:53,613 INFO L129 PetriNetUnfolder]: 643/1408 cut-off events. [2021-03-25 08:00:53,613 INFO L130 PetriNetUnfolder]: For 172997/172997 co-relation queries the response was YES. [2021-03-25 08:00:53,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22508 conditions, 1408 events. 643/1408 cut-off events. For 172997/172997 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 10484 event pairs, 0 based on Foata normal form. 1/1405 useless extension candidates. Maximal degree in co-relation 22031. Up to 1200 conditions per place. [2021-03-25 08:00:53,655 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 965 selfloop transitions, 72 changer transitions 10/1052 dead transitions. [2021-03-25 08:00:53,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 885 places, 1052 transitions, 32056 flow [2021-03-25 08:00:53,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:00:53,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:00:53,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 267 transitions. [2021-03-25 08:00:53,656 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40210843373493976 [2021-03-25 08:00:53,656 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 267 transitions. [2021-03-25 08:00:53,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 267 transitions. [2021-03-25 08:00:53,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:53,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 267 transitions. [2021-03-25 08:00:53,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:53,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:53,657 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:53,657 INFO L185 Difference]: Start difference. First operand has 878 places, 1042 transitions, 29207 flow. Second operand 8 states and 267 transitions. [2021-03-25 08:00:53,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 885 places, 1052 transitions, 32056 flow [2021-03-25 08:00:55,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 873 places, 1052 transitions, 31858 flow, removed 6 selfloop flow, removed 12 redundant places. [2021-03-25 08:00:55,915 INFO L241 Difference]: Finished difference. Result has 877 places, 1037 transitions, 29311 flow [2021-03-25 08:00:55,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=29013, PETRI_DIFFERENCE_MINUEND_PLACES=866, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1042, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=29311, PETRI_PLACES=877, PETRI_TRANSITIONS=1037} [2021-03-25 08:00:55,915 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 846 predicate places. [2021-03-25 08:00:55,915 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:55,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 877 places, 1037 transitions, 29311 flow [2021-03-25 08:00:55,916 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 877 places, 1037 transitions, 29311 flow [2021-03-25 08:00:55,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 877 places, 1037 transitions, 29311 flow [2021-03-25 08:00:56,302 INFO L129 PetriNetUnfolder]: 538/1209 cut-off events. [2021-03-25 08:00:56,302 INFO L130 PetriNetUnfolder]: For 151030/151057 co-relation queries the response was YES. [2021-03-25 08:00:56,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17888 conditions, 1209 events. 538/1209 cut-off events. For 151030/151057 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 9189 event pairs, 0 based on Foata normal form. 8/1215 useless extension candidates. Maximal degree in co-relation 17469. Up to 302 conditions per place. [2021-03-25 08:00:56,352 INFO L142 LiptonReduction]: Number of co-enabled transitions 1092 [2021-03-25 08:00:56,467 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:00:56,467 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:00:56,467 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 552 [2021-03-25 08:00:56,467 INFO L480 AbstractCegarLoop]: Abstraction has has 877 places, 1037 transitions, 29311 flow [2021-03-25 08:00:56,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:56,467 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:00:56,467 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:00:56,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-03-25 08:00:56,467 INFO L428 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:00:56,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:00:56,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1988758139, now seen corresponding path program 2 times [2021-03-25 08:00:56,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:00:56,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107479649] [2021-03-25 08:00:56,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:00:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:00:56,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:56,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:56,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:56,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:56,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:56,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:56,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:56,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:00:56,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:56,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:56,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:56,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:56,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:00:56,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:00:56,503 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:00:56,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:00:56,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:00:56,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107479649] [2021-03-25 08:00:56,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:00:56,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 08:00:56,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827908029] [2021-03-25 08:00:56,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:00:56,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:00:56,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:00:56,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:00:56,506 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2021-03-25 08:00:56,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 877 places, 1037 transitions, 29311 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:56,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:00:56,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2021-03-25 08:00:56,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:00:57,467 INFO L129 PetriNetUnfolder]: 638/1398 cut-off events. [2021-03-25 08:00:57,467 INFO L130 PetriNetUnfolder]: For 165987/165987 co-relation queries the response was YES. [2021-03-25 08:00:57,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22237 conditions, 1398 events. 638/1398 cut-off events. For 165987/165987 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 10330 event pairs, 3 based on Foata normal form. 1/1397 useless extension candidates. Maximal degree in co-relation 21760. Up to 1204 conditions per place. [2021-03-25 08:00:57,511 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 1005 selfloop transitions, 32 changer transitions 3/1045 dead transitions. [2021-03-25 08:00:57,512 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 883 places, 1045 transitions, 31581 flow [2021-03-25 08:00:57,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:00:57,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:00:57,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 238 transitions. [2021-03-25 08:00:57,513 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40963855421686746 [2021-03-25 08:00:57,513 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 238 transitions. [2021-03-25 08:00:57,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 238 transitions. [2021-03-25 08:00:57,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:00:57,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 238 transitions. [2021-03-25 08:00:57,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.0) internal successors, (238), 7 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:57,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:57,513 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:00:57,514 INFO L185 Difference]: Start difference. First operand has 877 places, 1037 transitions, 29311 flow. Second operand 7 states and 238 transitions. [2021-03-25 08:00:57,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 883 places, 1045 transitions, 31581 flow [2021-03-25 08:00:59,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 868 places, 1045 transitions, 31179 flow, removed 79 selfloop flow, removed 15 redundant places. [2021-03-25 08:00:59,729 INFO L241 Difference]: Finished difference. Result has 870 places, 1035 transitions, 28920 flow [2021-03-25 08:00:59,730 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=28913, PETRI_DIFFERENCE_MINUEND_PLACES=862, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1037, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1005, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28920, PETRI_PLACES=870, PETRI_TRANSITIONS=1035} [2021-03-25 08:00:59,730 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 839 predicate places. [2021-03-25 08:00:59,730 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:00:59,730 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 870 places, 1035 transitions, 28920 flow [2021-03-25 08:00:59,730 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 870 places, 1035 transitions, 28920 flow [2021-03-25 08:00:59,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 870 places, 1035 transitions, 28920 flow [2021-03-25 08:01:00,126 INFO L129 PetriNetUnfolder]: 537/1216 cut-off events. [2021-03-25 08:01:00,126 INFO L130 PetriNetUnfolder]: For 144302/144315 co-relation queries the response was YES. [2021-03-25 08:01:00,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17695 conditions, 1216 events. 537/1216 cut-off events. For 144302/144315 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 9254 event pairs, 0 based on Foata normal form. 8/1221 useless extension candidates. Maximal degree in co-relation 17278. Up to 301 conditions per place. [2021-03-25 08:01:00,171 INFO L142 LiptonReduction]: Number of co-enabled transitions 1082 [2021-03-25 08:01:00,280 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:01:00,280 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:01:00,280 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 550 [2021-03-25 08:01:00,280 INFO L480 AbstractCegarLoop]: Abstraction has has 870 places, 1035 transitions, 28920 flow [2021-03-25 08:01:00,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:00,280 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:01:00,280 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:01:00,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-03-25 08:01:00,281 INFO L428 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:01:00,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:01:00,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1981027741, now seen corresponding path program 3 times [2021-03-25 08:01:00,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:01:00,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609733792] [2021-03-25 08:01:00,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:01:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:01:00,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:00,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:00,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:00,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:00,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:00,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:00,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:00,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:00,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:00,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:00,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:00,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:00,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:00,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:00,333 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:01:00,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:01:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:01:00,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609733792] [2021-03-25 08:01:00,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:01:00,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 08:01:00,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001571439] [2021-03-25 08:01:00,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:01:00,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:01:00,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:01:00,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:01:00,337 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2021-03-25 08:01:00,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 870 places, 1035 transitions, 28920 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:00,337 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:01:00,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2021-03-25 08:01:00,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:01:01,279 INFO L129 PetriNetUnfolder]: 637/1395 cut-off events. [2021-03-25 08:01:01,280 INFO L130 PetriNetUnfolder]: For 167081/167081 co-relation queries the response was YES. [2021-03-25 08:01:01,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22207 conditions, 1395 events. 637/1395 cut-off events. For 167081/167081 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 10300 event pairs, 1 based on Foata normal form. 1/1393 useless extension candidates. Maximal degree in co-relation 21732. Up to 1204 conditions per place. [2021-03-25 08:01:01,321 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 1004 selfloop transitions, 34 changer transitions 2/1045 dead transitions. [2021-03-25 08:01:01,321 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 876 places, 1045 transitions, 31580 flow [2021-03-25 08:01:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:01:01,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:01:01,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 238 transitions. [2021-03-25 08:01:01,322 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40963855421686746 [2021-03-25 08:01:01,322 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 238 transitions. [2021-03-25 08:01:01,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 238 transitions. [2021-03-25 08:01:01,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:01:01,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 238 transitions. [2021-03-25 08:01:01,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.0) internal successors, (238), 7 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:01,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:01,323 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:01,323 INFO L185 Difference]: Start difference. First operand has 870 places, 1035 transitions, 28920 flow. Second operand 7 states and 238 transitions. [2021-03-25 08:01:01,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 876 places, 1045 transitions, 31580 flow [2021-03-25 08:01:03,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 867 places, 1045 transitions, 31486 flow, removed 3 selfloop flow, removed 9 redundant places. [2021-03-25 08:01:03,474 INFO L241 Difference]: Finished difference. Result has 870 places, 1036 transitions, 29128 flow [2021-03-25 08:01:03,474 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=28828, PETRI_DIFFERENCE_MINUEND_PLACES=861, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1035, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1001, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29128, PETRI_PLACES=870, PETRI_TRANSITIONS=1036} [2021-03-25 08:01:03,474 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 839 predicate places. [2021-03-25 08:01:03,474 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:01:03,474 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 870 places, 1036 transitions, 29128 flow [2021-03-25 08:01:03,475 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 870 places, 1036 transitions, 29128 flow [2021-03-25 08:01:03,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 870 places, 1036 transitions, 29128 flow [2021-03-25 08:01:03,863 INFO L129 PetriNetUnfolder]: 537/1217 cut-off events. [2021-03-25 08:01:03,863 INFO L130 PetriNetUnfolder]: For 150299/150321 co-relation queries the response was YES. [2021-03-25 08:01:03,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17814 conditions, 1217 events. 537/1217 cut-off events. For 150299/150321 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 9307 event pairs, 0 based on Foata normal form. 10/1224 useless extension candidates. Maximal degree in co-relation 17397. Up to 302 conditions per place. [2021-03-25 08:01:03,914 INFO L142 LiptonReduction]: Number of co-enabled transitions 1084 [2021-03-25 08:01:04,034 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:01:04,035 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:01:04,035 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 561 [2021-03-25 08:01:04,035 INFO L480 AbstractCegarLoop]: Abstraction has has 870 places, 1036 transitions, 29128 flow [2021-03-25 08:01:04,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:04,035 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:01:04,035 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:01:04,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-03-25 08:01:04,035 INFO L428 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:01:04,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:01:04,036 INFO L82 PathProgramCache]: Analyzing trace with hash 595595849, now seen corresponding path program 4 times [2021-03-25 08:01:04,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:01:04,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336863590] [2021-03-25 08:01:04,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:01:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:01:04,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:04,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:04,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:04,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:04,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:04,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:04,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:04,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:04,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:04,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:04,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:04,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:04,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:04,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:04,078 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:01:04,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:01:04,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:01:04,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336863590] [2021-03-25 08:01:04,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:01:04,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:01:04,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479371369] [2021-03-25 08:01:04,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:01:04,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:01:04,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:01:04,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:01:04,081 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2021-03-25 08:01:04,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 870 places, 1036 transitions, 29128 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:04,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:01:04,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2021-03-25 08:01:04,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:01:05,083 INFO L129 PetriNetUnfolder]: 636/1395 cut-off events. [2021-03-25 08:01:05,083 INFO L130 PetriNetUnfolder]: For 163165/163165 co-relation queries the response was YES. [2021-03-25 08:01:05,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22133 conditions, 1395 events. 636/1395 cut-off events. For 163165/163165 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 10337 event pairs, 2 based on Foata normal form. 1/1393 useless extension candidates. Maximal degree in co-relation 21657. Up to 1190 conditions per place. [2021-03-25 08:01:05,128 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 981 selfloop transitions, 54 changer transitions 4/1044 dead transitions. [2021-03-25 08:01:05,128 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 877 places, 1044 transitions, 31394 flow [2021-03-25 08:01:05,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:01:05,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:01:05,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 269 transitions. [2021-03-25 08:01:05,129 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40512048192771083 [2021-03-25 08:01:05,129 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 269 transitions. [2021-03-25 08:01:05,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 269 transitions. [2021-03-25 08:01:05,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:01:05,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 269 transitions. [2021-03-25 08:01:05,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.625) internal successors, (269), 8 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:05,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:05,130 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:05,130 INFO L185 Difference]: Start difference. First operand has 870 places, 1036 transitions, 29128 flow. Second operand 8 states and 269 transitions. [2021-03-25 08:01:05,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 877 places, 1044 transitions, 31394 flow [2021-03-25 08:01:07,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 870 places, 1044 transitions, 31160 flow, removed 78 selfloop flow, removed 7 redundant places. [2021-03-25 08:01:07,589 INFO L241 Difference]: Finished difference. Result has 872 places, 1033 transitions, 28926 flow [2021-03-25 08:01:07,590 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=28894, PETRI_DIFFERENCE_MINUEND_PLACES=863, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1036, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=28926, PETRI_PLACES=872, PETRI_TRANSITIONS=1033} [2021-03-25 08:01:07,590 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 841 predicate places. [2021-03-25 08:01:07,590 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:01:07,590 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 872 places, 1033 transitions, 28926 flow [2021-03-25 08:01:07,590 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 872 places, 1033 transitions, 28926 flow [2021-03-25 08:01:07,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 872 places, 1033 transitions, 28926 flow [2021-03-25 08:01:07,997 INFO L129 PetriNetUnfolder]: 536/1221 cut-off events. [2021-03-25 08:01:07,997 INFO L130 PetriNetUnfolder]: For 145526/145553 co-relation queries the response was YES. [2021-03-25 08:01:08,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17717 conditions, 1221 events. 536/1221 cut-off events. For 145526/145553 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 9322 event pairs, 0 based on Foata normal form. 8/1226 useless extension candidates. Maximal degree in co-relation 17300. Up to 301 conditions per place. [2021-03-25 08:01:08,047 INFO L142 LiptonReduction]: Number of co-enabled transitions 1076 [2021-03-25 08:01:08,168 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:01:08,169 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:01:08,169 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 579 [2021-03-25 08:01:08,169 INFO L480 AbstractCegarLoop]: Abstraction has has 872 places, 1033 transitions, 28926 flow [2021-03-25 08:01:08,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:08,169 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:01:08,169 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:01:08,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-03-25 08:01:08,169 INFO L428 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:01:08,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:01:08,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1908274275, now seen corresponding path program 5 times [2021-03-25 08:01:08,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:01:08,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051040825] [2021-03-25 08:01:08,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:01:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:01:08,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:08,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:08,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:08,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:08,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:08,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:08,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:08,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:08,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:08,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:01:08,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:08,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:08,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:08,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:08,218 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:01:08,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:01:08,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:01:08,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051040825] [2021-03-25 08:01:08,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:01:08,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:01:08,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774687947] [2021-03-25 08:01:08,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:01:08,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:01:08,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:01:08,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:01:08,221 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2021-03-25 08:01:08,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 872 places, 1033 transitions, 28926 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:08,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:01:08,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2021-03-25 08:01:08,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:01:09,233 INFO L129 PetriNetUnfolder]: 635/1391 cut-off events. [2021-03-25 08:01:09,234 INFO L130 PetriNetUnfolder]: For 167703/167703 co-relation queries the response was YES. [2021-03-25 08:01:09,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22197 conditions, 1391 events. 635/1391 cut-off events. For 167703/167703 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 10281 event pairs, 1 based on Foata normal form. 1/1389 useless extension candidates. Maximal degree in co-relation 21721. Up to 1190 conditions per place. [2021-03-25 08:01:09,274 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 978 selfloop transitions, 56 changer transitions 4/1043 dead transitions. [2021-03-25 08:01:09,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 879 places, 1043 transitions, 31588 flow [2021-03-25 08:01:09,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:01:09,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:01:09,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 269 transitions. [2021-03-25 08:01:09,275 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40512048192771083 [2021-03-25 08:01:09,275 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 269 transitions. [2021-03-25 08:01:09,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 269 transitions. [2021-03-25 08:01:09,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:01:09,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 269 transitions. [2021-03-25 08:01:09,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.625) internal successors, (269), 8 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:09,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:09,276 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:09,276 INFO L185 Difference]: Start difference. First operand has 872 places, 1033 transitions, 28926 flow. Second operand 8 states and 269 transitions. [2021-03-25 08:01:09,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 879 places, 1043 transitions, 31588 flow [2021-03-25 08:01:11,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 867 places, 1043 transitions, 31413 flow, removed 8 selfloop flow, removed 12 redundant places. [2021-03-25 08:01:11,385 INFO L241 Difference]: Finished difference. Result has 870 places, 1032 transitions, 29069 flow [2021-03-25 08:01:11,385 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=28759, PETRI_DIFFERENCE_MINUEND_PLACES=860, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1033, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=977, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=29069, PETRI_PLACES=870, PETRI_TRANSITIONS=1032} [2021-03-25 08:01:11,385 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 839 predicate places. [2021-03-25 08:01:11,385 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:01:11,386 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 870 places, 1032 transitions, 29069 flow [2021-03-25 08:01:11,386 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 870 places, 1032 transitions, 29069 flow [2021-03-25 08:01:11,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 870 places, 1032 transitions, 29069 flow [2021-03-25 08:01:11,760 INFO L129 PetriNetUnfolder]: 535/1215 cut-off events. [2021-03-25 08:01:11,760 INFO L130 PetriNetUnfolder]: For 149568/149581 co-relation queries the response was YES. [2021-03-25 08:01:11,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17787 conditions, 1215 events. 535/1215 cut-off events. For 149568/149581 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 9291 event pairs, 0 based on Foata normal form. 8/1220 useless extension candidates. Maximal degree in co-relation 17370. Up to 302 conditions per place. [2021-03-25 08:01:11,809 INFO L142 LiptonReduction]: Number of co-enabled transitions 1074 [2021-03-25 08:01:11,929 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:01:11,929 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:01:11,929 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 544 [2021-03-25 08:01:11,929 INFO L480 AbstractCegarLoop]: Abstraction has has 870 places, 1032 transitions, 29069 flow [2021-03-25 08:01:11,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:11,930 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:01:11,930 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:01:11,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-03-25 08:01:11,930 INFO L428 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:01:11,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:01:11,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1167050655, now seen corresponding path program 6 times [2021-03-25 08:01:11,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:01:11,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217118205] [2021-03-25 08:01:11,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:01:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:01:11,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:11,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:11,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:11,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:11,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:11,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:11,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:11,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:11,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:11,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:01:11,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:11,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:11,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:11,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:11,976 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:01:11,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:01:11,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:01:11,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217118205] [2021-03-25 08:01:11,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:01:11,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:01:11,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023307899] [2021-03-25 08:01:11,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:01:11,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:01:11,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:01:11,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:01:11,979 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2021-03-25 08:01:11,979 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 870 places, 1032 transitions, 29069 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:11,979 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:01:11,979 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2021-03-25 08:01:11,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:01:12,951 INFO L129 PetriNetUnfolder]: 634/1393 cut-off events. [2021-03-25 08:01:12,951 INFO L130 PetriNetUnfolder]: For 168833/168833 co-relation queries the response was YES. [2021-03-25 08:01:12,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22355 conditions, 1393 events. 634/1393 cut-off events. For 168833/168833 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 10306 event pairs, 1 based on Foata normal form. 1/1391 useless extension candidates. Maximal degree in co-relation 21879. Up to 1204 conditions per place. [2021-03-25 08:01:12,988 INFO L132 encePairwiseOnDemand]: 74/83 looper letters, 986 selfloop transitions, 42 changer transitions 8/1041 dead transitions. [2021-03-25 08:01:12,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 877 places, 1041 transitions, 31877 flow [2021-03-25 08:01:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:01:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:01:12,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 267 transitions. [2021-03-25 08:01:12,989 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40210843373493976 [2021-03-25 08:01:12,989 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 267 transitions. [2021-03-25 08:01:12,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 267 transitions. [2021-03-25 08:01:12,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:01:12,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 267 transitions. [2021-03-25 08:01:12,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:12,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:12,990 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:12,990 INFO L185 Difference]: Start difference. First operand has 870 places, 1032 transitions, 29069 flow. Second operand 8 states and 267 transitions. [2021-03-25 08:01:12,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 877 places, 1041 transitions, 31877 flow [2021-03-25 08:01:15,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 869 places, 1041 transitions, 31608 flow, removed 79 selfloop flow, removed 8 redundant places. [2021-03-25 08:01:15,190 INFO L241 Difference]: Finished difference. Result has 873 places, 1028 transitions, 28994 flow [2021-03-25 08:01:15,190 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=28802, PETRI_DIFFERENCE_MINUEND_PLACES=862, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1032, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=990, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=28994, PETRI_PLACES=873, PETRI_TRANSITIONS=1028} [2021-03-25 08:01:15,191 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 842 predicate places. [2021-03-25 08:01:15,191 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:01:15,191 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 873 places, 1028 transitions, 28994 flow [2021-03-25 08:01:15,191 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 873 places, 1028 transitions, 28994 flow [2021-03-25 08:01:15,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 873 places, 1028 transitions, 28994 flow [2021-03-25 08:01:15,591 INFO L129 PetriNetUnfolder]: 533/1207 cut-off events. [2021-03-25 08:01:15,591 INFO L130 PetriNetUnfolder]: For 147753/147753 co-relation queries the response was YES. [2021-03-25 08:01:15,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17758 conditions, 1207 events. 533/1207 cut-off events. For 147753/147753 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 9196 event pairs, 0 based on Foata normal form. 0/1205 useless extension candidates. Maximal degree in co-relation 17339. Up to 301 conditions per place. [2021-03-25 08:01:15,645 INFO L142 LiptonReduction]: Number of co-enabled transitions 1066 [2021-03-25 08:01:15,951 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:01:15,951 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:01:15,951 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 760 [2021-03-25 08:01:15,951 INFO L480 AbstractCegarLoop]: Abstraction has has 873 places, 1028 transitions, 29016 flow [2021-03-25 08:01:15,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:15,952 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:01:15,952 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:01:15,952 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-03-25 08:01:15,952 INFO L428 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:01:15,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:01:15,952 INFO L82 PathProgramCache]: Analyzing trace with hash 641105279, now seen corresponding path program 1 times [2021-03-25 08:01:15,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:01:15,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392326418] [2021-03-25 08:01:15,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:01:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:01:15,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:15,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:15,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:15,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:15,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:15,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:15,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:15,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:01:15,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:15,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:01:15,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:15,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:15,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:15,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:15,997 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:01:15,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:01:15,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:01:15,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392326418] [2021-03-25 08:01:15,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:01:15,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:01:15,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223747676] [2021-03-25 08:01:15,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:01:15,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:01:15,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:01:15,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:01:16,000 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2021-03-25 08:01:16,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 873 places, 1028 transitions, 29016 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:16,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:01:16,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2021-03-25 08:01:16,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:01:17,059 INFO L129 PetriNetUnfolder]: 631/1383 cut-off events. [2021-03-25 08:01:17,059 INFO L130 PetriNetUnfolder]: For 168971/168971 co-relation queries the response was YES. [2021-03-25 08:01:17,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22230 conditions, 1383 events. 631/1383 cut-off events. For 168971/168971 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 10206 event pairs, 1 based on Foata normal form. 1/1381 useless extension candidates. Maximal degree in co-relation 21752. Up to 1207 conditions per place. [2021-03-25 08:01:17,105 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 990 selfloop transitions, 40 changer transitions 2/1037 dead transitions. [2021-03-25 08:01:17,105 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 880 places, 1037 transitions, 31666 flow [2021-03-25 08:01:17,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:01:17,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:01:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 267 transitions. [2021-03-25 08:01:17,106 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39732142857142855 [2021-03-25 08:01:17,106 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 267 transitions. [2021-03-25 08:01:17,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 267 transitions. [2021-03-25 08:01:17,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:01:17,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 267 transitions. [2021-03-25 08:01:17,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:17,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:17,107 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:17,107 INFO L185 Difference]: Start difference. First operand has 873 places, 1028 transitions, 29016 flow. Second operand 8 states and 267 transitions. [2021-03-25 08:01:17,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 880 places, 1037 transitions, 31666 flow [2021-03-25 08:01:19,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 863 places, 1037 transitions, 31301 flow, removed 92 selfloop flow, removed 17 redundant places. [2021-03-25 08:01:19,529 INFO L241 Difference]: Finished difference. Result has 866 places, 1029 transitions, 28966 flow [2021-03-25 08:01:19,529 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=28659, PETRI_DIFFERENCE_MINUEND_PLACES=856, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1028, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=988, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=28966, PETRI_PLACES=866, PETRI_TRANSITIONS=1029} [2021-03-25 08:01:19,529 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 835 predicate places. [2021-03-25 08:01:19,529 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:01:19,529 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 866 places, 1029 transitions, 28966 flow [2021-03-25 08:01:19,529 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 866 places, 1029 transitions, 28966 flow [2021-03-25 08:01:19,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 866 places, 1029 transitions, 28966 flow [2021-03-25 08:01:19,931 INFO L129 PetriNetUnfolder]: 533/1209 cut-off events. [2021-03-25 08:01:19,931 INFO L130 PetriNetUnfolder]: For 147692/147692 co-relation queries the response was YES. [2021-03-25 08:01:19,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17753 conditions, 1209 events. 533/1209 cut-off events. For 147692/147692 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 9264 event pairs, 0 based on Foata normal form. 0/1208 useless extension candidates. Maximal degree in co-relation 17336. Up to 302 conditions per place. [2021-03-25 08:01:19,980 INFO L142 LiptonReduction]: Number of co-enabled transitions 1068 [2021-03-25 08:01:20,089 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:01:20,089 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:01:20,089 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 560 [2021-03-25 08:01:20,089 INFO L480 AbstractCegarLoop]: Abstraction has has 866 places, 1029 transitions, 28966 flow [2021-03-25 08:01:20,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:20,089 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:01:20,089 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:01:20,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-03-25 08:01:20,090 INFO L428 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:01:20,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:01:20,090 INFO L82 PathProgramCache]: Analyzing trace with hash -809922628, now seen corresponding path program 1 times [2021-03-25 08:01:20,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:01:20,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973526495] [2021-03-25 08:01:20,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:01:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:01:20,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:20,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:20,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:20,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:20,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:20,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:20,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:20,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:20,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:20,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:20,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:20,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:20,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:20,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:20,118 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:01:20,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:01:20,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:01:20,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973526495] [2021-03-25 08:01:20,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:01:20,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 08:01:20,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792647832] [2021-03-25 08:01:20,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 08:01:20,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:01:20,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 08:01:20,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 08:01:20,121 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2021-03-25 08:01:20,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 866 places, 1029 transitions, 28966 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:20,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:01:20,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2021-03-25 08:01:20,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:01:20,921 INFO L129 PetriNetUnfolder]: 539/1214 cut-off events. [2021-03-25 08:01:20,921 INFO L130 PetriNetUnfolder]: For 157456/157462 co-relation queries the response was YES. [2021-03-25 08:01:20,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19598 conditions, 1214 events. 539/1214 cut-off events. For 157456/157462 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 9069 event pairs, 0 based on Foata normal form. 4/1217 useless extension candidates. Maximal degree in co-relation 19139. Up to 1049 conditions per place. [2021-03-25 08:01:20,955 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 1009 selfloop transitions, 18 changer transitions 2/1034 dead transitions. [2021-03-25 08:01:20,956 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 871 places, 1034 transitions, 31554 flow [2021-03-25 08:01:20,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 08:01:20,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 08:01:20,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2021-03-25 08:01:20,957 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4007936507936508 [2021-03-25 08:01:20,957 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 202 transitions. [2021-03-25 08:01:20,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 202 transitions. [2021-03-25 08:01:20,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:01:20,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 202 transitions. [2021-03-25 08:01:20,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 6 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:20,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:20,957 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:20,957 INFO L185 Difference]: Start difference. First operand has 866 places, 1029 transitions, 28966 flow. Second operand 6 states and 202 transitions. [2021-03-25 08:01:20,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 871 places, 1034 transitions, 31554 flow [2021-03-25 08:01:22,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 863 places, 1034 transitions, 31319 flow, removed 79 selfloop flow, removed 8 redundant places. [2021-03-25 08:01:22,948 INFO L241 Difference]: Finished difference. Result has 866 places, 1030 transitions, 28972 flow [2021-03-25 08:01:22,949 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=28731, PETRI_DIFFERENCE_MINUEND_PLACES=858, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1029, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1011, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=28972, PETRI_PLACES=866, PETRI_TRANSITIONS=1030} [2021-03-25 08:01:22,949 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 835 predicate places. [2021-03-25 08:01:22,949 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:01:22,949 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 866 places, 1030 transitions, 28972 flow [2021-03-25 08:01:22,949 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 866 places, 1030 transitions, 28972 flow [2021-03-25 08:01:22,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 866 places, 1030 transitions, 28972 flow [2021-03-25 08:01:23,314 INFO L129 PetriNetUnfolder]: 533/1209 cut-off events. [2021-03-25 08:01:23,314 INFO L130 PetriNetUnfolder]: For 150574/150596 co-relation queries the response was YES. [2021-03-25 08:01:23,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17765 conditions, 1209 events. 533/1209 cut-off events. For 150574/150596 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 9216 event pairs, 0 based on Foata normal form. 10/1217 useless extension candidates. Maximal degree in co-relation 17347. Up to 302 conditions per place. [2021-03-25 08:01:23,362 INFO L142 LiptonReduction]: Number of co-enabled transitions 1068 [2021-03-25 08:01:23,480 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:01:23,480 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:01:23,480 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 531 [2021-03-25 08:01:23,481 INFO L480 AbstractCegarLoop]: Abstraction has has 866 places, 1030 transitions, 28972 flow [2021-03-25 08:01:23,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:23,481 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:01:23,481 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:01:23,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-03-25 08:01:23,481 INFO L428 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:01:23,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:01:23,481 INFO L82 PathProgramCache]: Analyzing trace with hash -937018355, now seen corresponding path program 2 times [2021-03-25 08:01:23,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:01:23,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720384747] [2021-03-25 08:01:23,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:01:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:01:23,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:23,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:23,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:23,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:23,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:23,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:23,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:23,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:01:23,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:23,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:01:23,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:23,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:23,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:23,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:23,525 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:01:23,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:01:23,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:01:23,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720384747] [2021-03-25 08:01:23,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:01:23,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:01:23,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485975784] [2021-03-25 08:01:23,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:01:23,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:01:23,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:01:23,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:01:23,528 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2021-03-25 08:01:23,528 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 866 places, 1030 transitions, 28972 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:23,528 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:01:23,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2021-03-25 08:01:23,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:01:24,511 INFO L129 PetriNetUnfolder]: 632/1391 cut-off events. [2021-03-25 08:01:24,511 INFO L130 PetriNetUnfolder]: For 174160/174160 co-relation queries the response was YES. [2021-03-25 08:01:24,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22476 conditions, 1391 events. 632/1391 cut-off events. For 174160/174160 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 10268 event pairs, 0 based on Foata normal form. 1/1390 useless extension candidates. Maximal degree in co-relation 22000. Up to 1194 conditions per place. [2021-03-25 08:01:24,551 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 963 selfloop transitions, 64 changer transitions 8/1040 dead transitions. [2021-03-25 08:01:24,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 873 places, 1040 transitions, 32106 flow [2021-03-25 08:01:24,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:01:24,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:01:24,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 266 transitions. [2021-03-25 08:01:24,552 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3958333333333333 [2021-03-25 08:01:24,552 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 266 transitions. [2021-03-25 08:01:24,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 266 transitions. [2021-03-25 08:01:24,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:01:24,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 266 transitions. [2021-03-25 08:01:24,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.25) internal successors, (266), 8 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:24,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:24,553 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:24,553 INFO L185 Difference]: Start difference. First operand has 866 places, 1030 transitions, 28972 flow. Second operand 8 states and 266 transitions. [2021-03-25 08:01:24,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 873 places, 1040 transitions, 32106 flow [2021-03-25 08:01:26,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 867 places, 1040 transitions, 31897 flow, removed 82 selfloop flow, removed 6 redundant places. [2021-03-25 08:01:26,790 INFO L241 Difference]: Finished difference. Result has 872 places, 1028 transitions, 29072 flow [2021-03-25 08:01:26,790 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=28767, PETRI_DIFFERENCE_MINUEND_PLACES=860, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1030, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=966, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=29072, PETRI_PLACES=872, PETRI_TRANSITIONS=1028} [2021-03-25 08:01:26,791 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 841 predicate places. [2021-03-25 08:01:26,791 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:01:26,791 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 872 places, 1028 transitions, 29072 flow [2021-03-25 08:01:26,791 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 872 places, 1028 transitions, 29072 flow [2021-03-25 08:01:26,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 872 places, 1028 transitions, 29072 flow [2021-03-25 08:01:27,195 INFO L129 PetriNetUnfolder]: 531/1201 cut-off events. [2021-03-25 08:01:27,195 INFO L130 PetriNetUnfolder]: For 147010/147024 co-relation queries the response was YES. [2021-03-25 08:01:27,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17849 conditions, 1201 events. 531/1201 cut-off events. For 147010/147024 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 9193 event pairs, 0 based on Foata normal form. 8/1208 useless extension candidates. Maximal degree in co-relation 17428. Up to 302 conditions per place. [2021-03-25 08:01:27,249 INFO L142 LiptonReduction]: Number of co-enabled transitions 1064 [2021-03-25 08:01:27,373 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:01:27,373 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:01:27,373 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 582 [2021-03-25 08:01:27,373 INFO L480 AbstractCegarLoop]: Abstraction has has 872 places, 1028 transitions, 29072 flow [2021-03-25 08:01:27,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:27,373 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:01:27,373 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:01:27,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-03-25 08:01:27,374 INFO L428 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:01:27,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:01:27,374 INFO L82 PathProgramCache]: Analyzing trace with hash -84350654, now seen corresponding path program 2 times [2021-03-25 08:01:27,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:01:27,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124336379] [2021-03-25 08:01:27,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:01:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:01:27,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:27,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:27,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:27,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:27,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:27,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:27,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:27,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:27,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:27,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:01:27,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:27,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:27,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:27,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:27,420 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:01:27,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:01:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:01:27,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124336379] [2021-03-25 08:01:27,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:01:27,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 08:01:27,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947854694] [2021-03-25 08:01:27,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:01:27,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:01:27,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:01:27,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:01:27,424 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2021-03-25 08:01:27,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 872 places, 1028 transitions, 29072 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:27,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:01:27,425 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2021-03-25 08:01:27,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:01:28,365 INFO L129 PetriNetUnfolder]: 536/1209 cut-off events. [2021-03-25 08:01:28,365 INFO L130 PetriNetUnfolder]: For 151823/151829 co-relation queries the response was YES. [2021-03-25 08:01:28,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19534 conditions, 1209 events. 536/1209 cut-off events. For 151823/151829 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 9011 event pairs, 1 based on Foata normal form. 7/1215 useless extension candidates. Maximal degree in co-relation 19071. Up to 1036 conditions per place. [2021-03-25 08:01:28,401 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 988 selfloop transitions, 36 changer transitions 3/1032 dead transitions. [2021-03-25 08:01:28,401 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 878 places, 1032 transitions, 31340 flow [2021-03-25 08:01:28,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:01:28,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:01:28,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 08:01:28,402 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3979591836734694 [2021-03-25 08:01:28,402 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 08:01:28,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 08:01:28,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:01:28,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 08:01:28,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:28,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:28,403 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:28,403 INFO L185 Difference]: Start difference. First operand has 872 places, 1028 transitions, 29072 flow. Second operand 7 states and 234 transitions. [2021-03-25 08:01:28,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 878 places, 1032 transitions, 31340 flow [2021-03-25 08:01:30,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 866 places, 1032 transitions, 31011 flow, removed 70 selfloop flow, removed 12 redundant places. [2021-03-25 08:01:30,491 INFO L241 Difference]: Finished difference. Result has 868 places, 1026 transitions, 28795 flow [2021-03-25 08:01:30,491 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=28745, PETRI_DIFFERENCE_MINUEND_PLACES=860, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1028, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=992, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28795, PETRI_PLACES=868, PETRI_TRANSITIONS=1026} [2021-03-25 08:01:30,492 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 837 predicate places. [2021-03-25 08:01:30,492 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:01:30,492 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 868 places, 1026 transitions, 28795 flow [2021-03-25 08:01:30,492 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 868 places, 1026 transitions, 28795 flow [2021-03-25 08:01:30,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 868 places, 1026 transitions, 28795 flow [2021-03-25 08:01:30,874 INFO L129 PetriNetUnfolder]: 530/1209 cut-off events. [2021-03-25 08:01:30,874 INFO L130 PetriNetUnfolder]: For 146161/146182 co-relation queries the response was YES. [2021-03-25 08:01:30,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17699 conditions, 1209 events. 530/1209 cut-off events. For 146161/146182 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 9270 event pairs, 0 based on Foata normal form. 10/1217 useless extension candidates. Maximal degree in co-relation 17280. Up to 302 conditions per place. [2021-03-25 08:01:30,923 INFO L142 LiptonReduction]: Number of co-enabled transitions 1062 [2021-03-25 08:01:31,039 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:01:31,039 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:01:31,039 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 547 [2021-03-25 08:01:31,039 INFO L480 AbstractCegarLoop]: Abstraction has has 868 places, 1026 transitions, 28795 flow [2021-03-25 08:01:31,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:31,039 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:01:31,039 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:01:31,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-03-25 08:01:31,040 INFO L428 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:01:31,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:01:31,040 INFO L82 PathProgramCache]: Analyzing trace with hash -781257981, now seen corresponding path program 1 times [2021-03-25 08:01:31,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:01:31,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231358280] [2021-03-25 08:01:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:01:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:01:31,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:31,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:31,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:31,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:31,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:31,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:31,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:31,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:01:31,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:31,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:01:31,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:31,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:31,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:31,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:31,083 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:01:31,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:01:31,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:01:31,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231358280] [2021-03-25 08:01:31,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:01:31,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:01:31,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709639108] [2021-03-25 08:01:31,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:01:31,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:01:31,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:01:31,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:01:31,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2021-03-25 08:01:31,086 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 868 places, 1026 transitions, 28795 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:31,086 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:01:31,086 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2021-03-25 08:01:31,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:01:32,112 INFO L129 PetriNetUnfolder]: 627/1380 cut-off events. [2021-03-25 08:01:32,112 INFO L130 PetriNetUnfolder]: For 171749/171751 co-relation queries the response was YES. [2021-03-25 08:01:32,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22108 conditions, 1380 events. 627/1380 cut-off events. For 171749/171751 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 10202 event pairs, 55 based on Foata normal form. 3/1381 useless extension candidates. Maximal degree in co-relation 21686. Up to 1182 conditions per place. [2021-03-25 08:01:32,144 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 943 selfloop transitions, 78 changer transitions 7/1033 dead transitions. [2021-03-25 08:01:32,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 875 places, 1033 transitions, 31535 flow [2021-03-25 08:01:32,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:01:32,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:01:32,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 08:01:32,145 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3943452380952381 [2021-03-25 08:01:32,145 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 08:01:32,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 08:01:32,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:01:32,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 08:01:32,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:32,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:32,146 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:32,146 INFO L185 Difference]: Start difference. First operand has 868 places, 1026 transitions, 28795 flow. Second operand 8 states and 265 transitions. [2021-03-25 08:01:32,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 875 places, 1033 transitions, 31535 flow [2021-03-25 08:01:34,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 866 places, 1033 transitions, 31436 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-03-25 08:01:34,649 INFO L241 Difference]: Finished difference. Result has 870 places, 1023 transitions, 29023 flow [2021-03-25 08:01:34,649 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=28696, PETRI_DIFFERENCE_MINUEND_PLACES=859, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1026, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=948, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=29023, PETRI_PLACES=870, PETRI_TRANSITIONS=1023} [2021-03-25 08:01:34,649 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 839 predicate places. [2021-03-25 08:01:34,649 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:01:34,649 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 870 places, 1023 transitions, 29023 flow [2021-03-25 08:01:34,649 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 870 places, 1023 transitions, 29023 flow [2021-03-25 08:01:34,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 870 places, 1023 transitions, 29023 flow [2021-03-25 08:01:35,047 INFO L129 PetriNetUnfolder]: 528/1200 cut-off events. [2021-03-25 08:01:35,047 INFO L130 PetriNetUnfolder]: For 140685/140685 co-relation queries the response was YES. [2021-03-25 08:01:35,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17836 conditions, 1200 events. 528/1200 cut-off events. For 140685/140685 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 9159 event pairs, 0 based on Foata normal form. 0/1199 useless extension candidates. Maximal degree in co-relation 17415. Up to 303 conditions per place. [2021-03-25 08:01:35,100 INFO L142 LiptonReduction]: Number of co-enabled transitions 1054 [2021-03-25 08:01:35,221 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:01:35,221 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:01:35,221 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 572 [2021-03-25 08:01:35,221 INFO L480 AbstractCegarLoop]: Abstraction has has 870 places, 1023 transitions, 29023 flow [2021-03-25 08:01:35,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:35,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:01:35,221 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:01:35,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-03-25 08:01:35,222 INFO L428 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:01:35,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:01:35,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2124963994, now seen corresponding path program 3 times [2021-03-25 08:01:35,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:01:35,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077375562] [2021-03-25 08:01:35,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:01:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:01:35,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:35,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:35,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:35,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:35,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:35,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:35,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:35,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:35,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:35,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:01:35,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:35,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:35,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:35,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:35,267 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:01:35,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:01:35,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:01:35,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077375562] [2021-03-25 08:01:35,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:01:35,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:01:35,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333990398] [2021-03-25 08:01:35,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:01:35,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:01:35,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:01:35,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:01:35,270 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2021-03-25 08:01:35,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 870 places, 1023 transitions, 29023 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:35,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:01:35,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2021-03-25 08:01:35,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:01:36,176 INFO L129 PetriNetUnfolder]: 533/1199 cut-off events. [2021-03-25 08:01:36,177 INFO L130 PetriNetUnfolder]: For 148027/148039 co-relation queries the response was YES. [2021-03-25 08:01:36,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19506 conditions, 1199 events. 533/1199 cut-off events. For 148027/148039 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 8894 event pairs, 1 based on Foata normal form. 13/1211 useless extension candidates. Maximal degree in co-relation 19043. Up to 1017 conditions per place. [2021-03-25 08:01:36,212 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 960 selfloop transitions, 60 changer transitions 3/1028 dead transitions. [2021-03-25 08:01:36,212 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 877 places, 1028 transitions, 31285 flow [2021-03-25 08:01:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:01:36,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:01:36,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 266 transitions. [2021-03-25 08:01:36,213 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3958333333333333 [2021-03-25 08:01:36,213 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 266 transitions. [2021-03-25 08:01:36,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 266 transitions. [2021-03-25 08:01:36,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:01:36,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 266 transitions. [2021-03-25 08:01:36,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.25) internal successors, (266), 8 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:36,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:36,214 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:36,214 INFO L185 Difference]: Start difference. First operand has 870 places, 1023 transitions, 29023 flow. Second operand 8 states and 266 transitions. [2021-03-25 08:01:36,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 877 places, 1028 transitions, 31285 flow [2021-03-25 08:01:38,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 868 places, 1028 transitions, 30982 flow, removed 68 selfloop flow, removed 9 redundant places. [2021-03-25 08:01:38,389 INFO L241 Difference]: Finished difference. Result has 870 places, 1021 transitions, 28806 flow [2021-03-25 08:01:38,390 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=28720, PETRI_DIFFERENCE_MINUEND_PLACES=861, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1023, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=963, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=28806, PETRI_PLACES=870, PETRI_TRANSITIONS=1021} [2021-03-25 08:01:38,390 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 839 predicate places. [2021-03-25 08:01:38,390 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:01:38,390 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 870 places, 1021 transitions, 28806 flow [2021-03-25 08:01:38,390 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 870 places, 1021 transitions, 28806 flow [2021-03-25 08:01:38,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 870 places, 1021 transitions, 28806 flow [2021-03-25 08:01:38,779 INFO L129 PetriNetUnfolder]: 527/1200 cut-off events. [2021-03-25 08:01:38,779 INFO L130 PetriNetUnfolder]: For 144961/144982 co-relation queries the response was YES. [2021-03-25 08:01:38,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17712 conditions, 1200 events. 527/1200 cut-off events. For 144961/144982 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 9157 event pairs, 0 based on Foata normal form. 10/1208 useless extension candidates. Maximal degree in co-relation 17292. Up to 301 conditions per place. [2021-03-25 08:01:38,829 INFO L142 LiptonReduction]: Number of co-enabled transitions 1054 [2021-03-25 08:01:38,947 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:01:38,948 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:01:38,948 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 558 [2021-03-25 08:01:38,948 INFO L480 AbstractCegarLoop]: Abstraction has has 870 places, 1021 transitions, 28806 flow [2021-03-25 08:01:38,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:38,948 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:01:38,948 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:01:38,948 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-03-25 08:01:38,948 INFO L428 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:01:38,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:01:38,949 INFO L82 PathProgramCache]: Analyzing trace with hash -199551232, now seen corresponding path program 4 times [2021-03-25 08:01:38,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:01:38,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99847907] [2021-03-25 08:01:38,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:01:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:01:38,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:38,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:38,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:38,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:38,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:38,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:38,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:38,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:38,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:38,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:01:38,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:38,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:38,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:38,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:38,984 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:01:38,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:01:38,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:01:38,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99847907] [2021-03-25 08:01:38,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:01:38,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 08:01:38,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172524895] [2021-03-25 08:01:38,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 08:01:38,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:01:38,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 08:01:38,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 08:01:38,988 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2021-03-25 08:01:38,988 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 870 places, 1021 transitions, 28806 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:38,988 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:01:38,988 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2021-03-25 08:01:38,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:01:39,790 INFO L129 PetriNetUnfolder]: 533/1200 cut-off events. [2021-03-25 08:01:39,790 INFO L130 PetriNetUnfolder]: For 149388/149400 co-relation queries the response was YES. [2021-03-25 08:01:39,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19551 conditions, 1200 events. 533/1200 cut-off events. For 149388/149400 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 8896 event pairs, 0 based on Foata normal form. 9/1207 useless extension candidates. Maximal degree in co-relation 19072. Up to 1031 conditions per place. [2021-03-25 08:01:39,825 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 981 selfloop transitions, 38 changer transitions 2/1026 dead transitions. [2021-03-25 08:01:39,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 876 places, 1026 transitions, 31390 flow [2021-03-25 08:01:39,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 08:01:39,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 08:01:39,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2021-03-25 08:01:39,826 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39625850340136054 [2021-03-25 08:01:39,826 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 233 transitions. [2021-03-25 08:01:39,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 233 transitions. [2021-03-25 08:01:39,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:01:39,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 233 transitions. [2021-03-25 08:01:39,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:39,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:39,827 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:39,827 INFO L185 Difference]: Start difference. First operand has 870 places, 1021 transitions, 28806 flow. Second operand 7 states and 233 transitions. [2021-03-25 08:01:39,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 876 places, 1026 transitions, 31390 flow [2021-03-25 08:01:41,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 866 places, 1026 transitions, 31235 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-03-25 08:01:41,953 INFO L241 Difference]: Finished difference. Result has 869 places, 1022 transitions, 28951 flow [2021-03-25 08:01:41,954 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=28651, PETRI_DIFFERENCE_MINUEND_PLACES=860, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1021, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=983, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28951, PETRI_PLACES=869, PETRI_TRANSITIONS=1022} [2021-03-25 08:01:41,954 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 838 predicate places. [2021-03-25 08:01:41,954 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:01:41,954 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 869 places, 1022 transitions, 28951 flow [2021-03-25 08:01:41,954 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 869 places, 1022 transitions, 28951 flow [2021-03-25 08:01:41,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 869 places, 1022 transitions, 28951 flow [2021-03-25 08:01:42,362 INFO L129 PetriNetUnfolder]: 527/1204 cut-off events. [2021-03-25 08:01:42,363 INFO L130 PetriNetUnfolder]: For 147496/147533 co-relation queries the response was YES. [2021-03-25 08:01:42,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17801 conditions, 1204 events. 527/1204 cut-off events. For 147496/147533 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 9214 event pairs, 0 based on Foata normal form. 10/1212 useless extension candidates. Maximal degree in co-relation 17380. Up to 301 conditions per place. [2021-03-25 08:01:42,413 INFO L142 LiptonReduction]: Number of co-enabled transitions 1054 [2021-03-25 08:01:42,530 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:01:42,531 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:01:42,531 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 577 [2021-03-25 08:01:42,531 INFO L480 AbstractCegarLoop]: Abstraction has has 869 places, 1022 transitions, 28951 flow [2021-03-25 08:01:42,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:42,531 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:01:42,531 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:01:42,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-03-25 08:01:42,531 INFO L428 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:01:42,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:01:42,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1518197828, now seen corresponding path program 5 times [2021-03-25 08:01:42,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:01:42,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64082005] [2021-03-25 08:01:42,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:01:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:01:42,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:42,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:42,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:42,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:42,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:42,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:42,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:42,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:42,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:42,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:01:42,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:42,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 08:01:42,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:01:42,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:01:42,579 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 08:01:42,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:01:42,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:01:42,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64082005] [2021-03-25 08:01:42,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:01:42,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 08:01:42,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064926681] [2021-03-25 08:01:42,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 08:01:42,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:01:42,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 08:01:42,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 08:01:42,582 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2021-03-25 08:01:42,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 869 places, 1022 transitions, 28951 flow. Second operand has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:42,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:01:42,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2021-03-25 08:01:42,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:01:43,566 INFO L129 PetriNetUnfolder]: 532/1199 cut-off events. [2021-03-25 08:01:43,566 INFO L130 PetriNetUnfolder]: For 149634/149646 co-relation queries the response was YES. [2021-03-25 08:01:43,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19449 conditions, 1199 events. 532/1199 cut-off events. For 149634/149646 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 8903 event pairs, 0 based on Foata normal form. 13/1210 useless extension candidates. Maximal degree in co-relation 18969. Up to 1009 conditions per place. [2021-03-25 08:01:43,601 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 949 selfloop transitions, 64 changer transitions 8/1026 dead transitions. [2021-03-25 08:01:43,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 876 places, 1026 transitions, 31173 flow [2021-03-25 08:01:43,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 08:01:43,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 08:01:43,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 08:01:43,602 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3943452380952381 [2021-03-25 08:01:43,602 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 08:01:43,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 08:01:43,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:01:43,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 08:01:43,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:43,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:43,603 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 84.0) internal successors, (756), 9 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:01:43,603 INFO L185 Difference]: Start difference. First operand has 869 places, 1022 transitions, 28951 flow. Second operand 8 states and 265 transitions. [2021-03-25 08:01:43,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 876 places, 1026 transitions, 31173 flow Received shutdown request... [2021-03-25 08:01:44,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-03-25 08:01:44,721 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-25 08:01:44,725 WARN L224 ceAbstractionStarter]: Timeout [2021-03-25 08:01:44,726 INFO L202 PluginConnector]: Adding new model sum_invariant.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 08:01:44 BasicIcfg [2021-03-25 08:01:44,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 08:01:44,726 INFO L168 Benchmark]: Toolchain (without parser) took 841516.48 ms. Allocated memory was 255.9 MB in the beginning and 2.4 GB in the end (delta: 2.2 GB). Free memory was 236.8 MB in the beginning and 1.2 GB in the end (delta: -981.6 MB). Peak memory consumption was 1.2 GB. Max. memory is 16.0 GB. [2021-03-25 08:01:44,727 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.46 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 08:01:44,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.08 ms. Allocated memory is still 255.9 MB. Free memory was 236.6 MB in the beginning and 235.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 08:01:44,727 INFO L168 Benchmark]: Boogie Preprocessor took 12.31 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.3 MB in the end (delta: 833.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 08:01:44,727 INFO L168 Benchmark]: RCFGBuilder took 164.07 ms. Allocated memory is still 255.9 MB. Free memory was 234.3 MB in the beginning and 226.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-25 08:01:44,727 INFO L168 Benchmark]: TraceAbstraction took 841313.85 ms. Allocated memory was 255.9 MB in the beginning and 2.4 GB in the end (delta: 2.2 GB). Free memory was 225.6 MB in the beginning and 1.2 GB in the end (delta: -992.9 MB). Peak memory consumption was 1.2 GB. Max. memory is 16.0 GB. [2021-03-25 08:01:44,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.46 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.08 ms. Allocated memory is still 255.9 MB. Free memory was 236.6 MB in the beginning and 235.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.31 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.3 MB in the end (delta: 833.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 164.07 ms. Allocated memory is still 255.9 MB. Free memory was 234.3 MB in the beginning and 226.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 841313.85 ms. Allocated memory was 255.9 MB in the beginning and 2.4 GB in the end (delta: 2.2 GB). Free memory was 225.6 MB in the beginning and 1.2 GB in the end (delta: -992.9 MB). Peak memory consumption was 1.2 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 159.1ms, 39 PlacesBefore, 31 PlacesAfterwards, 38 TransitionsBefore, 30 TransitionsAfterwards, 528 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 450 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 261, positive: 247, positive conditional: 0, positive unconditional: 247, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 215, positive: 203, positive conditional: 0, positive unconditional: 203, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 215, positive: 203, positive conditional: 0, positive unconditional: 203, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 261, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 215, unknown conditional: 0, unknown unconditional: 215] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.3ms, 25 PlacesBefore, 25 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 156 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 102 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 23, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 30, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 23, unknown conditional: 0, unknown unconditional: 23] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.9ms, 26 PlacesBefore, 26 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 92 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 78.2ms, 36 PlacesBefore, 36 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 18, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.4ms, 38 PlacesBefore, 38 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 156 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.5ms, 45 PlacesBefore, 45 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 186 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 16, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.2ms, 52 PlacesBefore, 52 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 216 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 81 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 86.5ms, 61 PlacesBefore, 61 PlacesAfterwards, 86 TransitionsBefore, 86 TransitionsAfterwards, 276 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 326 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 38, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 67.6ms, 69 PlacesBefore, 69 PlacesAfterwards, 100 TransitionsBefore, 100 TransitionsAfterwards, 316 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 198 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 79.7ms, 76 PlacesBefore, 76 PlacesAfterwards, 124 TransitionsBefore, 124 TransitionsAfterwards, 362 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 252 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 28, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 98.2ms, 85 PlacesBefore, 85 PlacesAfterwards, 135 TransitionsBefore, 135 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 315 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.1ms, 93 PlacesBefore, 93 PlacesAfterwards, 148 TransitionsBefore, 148 TransitionsAfterwards, 430 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 360 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 40, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 99.2ms, 99 PlacesBefore, 99 PlacesAfterwards, 160 TransitionsBefore, 160 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 811 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 91, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 91, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 114.9ms, 111 PlacesBefore, 111 PlacesAfterwards, 208 TransitionsBefore, 208 TransitionsAfterwards, 562 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 495 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 55, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.1ms, 118 PlacesBefore, 118 PlacesAfterwards, 219 TransitionsBefore, 219 TransitionsAfterwards, 580 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 121.4ms, 129 PlacesBefore, 129 PlacesAfterwards, 244 TransitionsBefore, 244 TransitionsAfterwards, 650 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 135.4ms, 138 PlacesBefore, 138 PlacesAfterwards, 253 TransitionsBefore, 253 TransitionsAfterwards, 624 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 120.8ms, 145 PlacesBefore, 145 PlacesAfterwards, 272 TransitionsBefore, 272 TransitionsAfterwards, 660 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.1ms, 154 PlacesBefore, 154 PlacesAfterwards, 276 TransitionsBefore, 276 TransitionsAfterwards, 664 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.1ms, 162 PlacesBefore, 162 PlacesAfterwards, 276 TransitionsBefore, 276 TransitionsAfterwards, 664 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 121.3ms, 166 PlacesBefore, 166 PlacesAfterwards, 295 TransitionsBefore, 295 TransitionsAfterwards, 682 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 127.3ms, 174 PlacesBefore, 174 PlacesAfterwards, 307 TransitionsBefore, 307 TransitionsAfterwards, 688 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 110.5ms, 183 PlacesBefore, 183 PlacesAfterwards, 320 TransitionsBefore, 320 TransitionsAfterwards, 694 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 128.2ms, 190 PlacesBefore, 190 PlacesAfterwards, 337 TransitionsBefore, 337 TransitionsAfterwards, 720 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 126.8ms, 199 PlacesBefore, 199 PlacesAfterwards, 351 TransitionsBefore, 351 TransitionsAfterwards, 726 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 112.4ms, 206 PlacesBefore, 206 PlacesAfterwards, 366 TransitionsBefore, 366 TransitionsAfterwards, 740 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 127.7ms, 217 PlacesBefore, 217 PlacesAfterwards, 391 TransitionsBefore, 391 TransitionsAfterwards, 758 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 147.8ms, 228 PlacesBefore, 228 PlacesAfterwards, 414 TransitionsBefore, 414 TransitionsAfterwards, 790 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 121.5ms, 233 PlacesBefore, 233 PlacesAfterwards, 415 TransitionsBefore, 415 TransitionsAfterwards, 788 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 141.0ms, 240 PlacesBefore, 240 PlacesAfterwards, 427 TransitionsBefore, 427 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 133.4ms, 248 PlacesBefore, 248 PlacesAfterwards, 428 TransitionsBefore, 428 TransitionsAfterwards, 788 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 137.2ms, 257 PlacesBefore, 257 PlacesAfterwards, 437 TransitionsBefore, 437 TransitionsAfterwards, 796 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 139.2ms, 267 PlacesBefore, 267 PlacesAfterwards, 451 TransitionsBefore, 451 TransitionsAfterwards, 812 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 152.6ms, 278 PlacesBefore, 278 PlacesAfterwards, 476 TransitionsBefore, 476 TransitionsAfterwards, 824 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 213.2ms, 288 PlacesBefore, 288 PlacesAfterwards, 499 TransitionsBefore, 499 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 166.1ms, 298 PlacesBefore, 298 PlacesAfterwards, 525 TransitionsBefore, 525 TransitionsAfterwards, 876 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 207.0ms, 307 PlacesBefore, 307 PlacesAfterwards, 537 TransitionsBefore, 537 TransitionsAfterwards, 912 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 275.4ms, 315 PlacesBefore, 315 PlacesAfterwards, 545 TransitionsBefore, 545 TransitionsAfterwards, 920 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 280.0ms, 324 PlacesBefore, 324 PlacesAfterwards, 553 TransitionsBefore, 553 TransitionsAfterwards, 928 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 219.3ms, 330 PlacesBefore, 330 PlacesAfterwards, 562 TransitionsBefore, 562 TransitionsAfterwards, 940 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 255.8ms, 343 PlacesBefore, 343 PlacesAfterwards, 598 TransitionsBefore, 598 TransitionsAfterwards, 958 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 274.0ms, 355 PlacesBefore, 355 PlacesAfterwards, 619 TransitionsBefore, 619 TransitionsAfterwards, 990 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 309.8ms, 365 PlacesBefore, 365 PlacesAfterwards, 634 TransitionsBefore, 634 TransitionsAfterwards, 972 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 230.4ms, 370 PlacesBefore, 370 PlacesAfterwards, 632 TransitionsBefore, 632 TransitionsAfterwards, 964 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 262.9ms, 378 PlacesBefore, 378 PlacesAfterwards, 671 TransitionsBefore, 671 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 279.5ms, 386 PlacesBefore, 386 PlacesAfterwards, 672 TransitionsBefore, 672 TransitionsAfterwards, 1046 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 262.6ms, 392 PlacesBefore, 392 PlacesAfterwards, 671 TransitionsBefore, 671 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 266.6ms, 399 PlacesBefore, 399 PlacesAfterwards, 673 TransitionsBefore, 673 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 374.3ms, 406 PlacesBefore, 406 PlacesAfterwards, 682 TransitionsBefore, 682 TransitionsAfterwards, 1060 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 280.2ms, 411 PlacesBefore, 411 PlacesAfterwards, 680 TransitionsBefore, 680 TransitionsAfterwards, 1056 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 316.2ms, 410 PlacesBefore, 410 PlacesAfterwards, 684 TransitionsBefore, 684 TransitionsAfterwards, 1064 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 299.4ms, 417 PlacesBefore, 417 PlacesAfterwards, 685 TransitionsBefore, 685 TransitionsAfterwards, 1066 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 287.0ms, 424 PlacesBefore, 424 PlacesAfterwards, 686 TransitionsBefore, 686 TransitionsAfterwards, 1066 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 293.2ms, 425 PlacesBefore, 425 PlacesAfterwards, 688 TransitionsBefore, 688 TransitionsAfterwards, 1066 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 289.5ms, 430 PlacesBefore, 430 PlacesAfterwards, 682 TransitionsBefore, 682 TransitionsAfterwards, 1074 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 321.3ms, 432 PlacesBefore, 432 PlacesAfterwards, 700 TransitionsBefore, 700 TransitionsAfterwards, 1078 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 300.6ms, 439 PlacesBefore, 439 PlacesAfterwards, 705 TransitionsBefore, 705 TransitionsAfterwards, 1088 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 348.0ms, 445 PlacesBefore, 445 PlacesAfterwards, 710 TransitionsBefore, 710 TransitionsAfterwards, 1090 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 337.9ms, 450 PlacesBefore, 450 PlacesAfterwards, 720 TransitionsBefore, 720 TransitionsAfterwards, 1098 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 304.3ms, 457 PlacesBefore, 457 PlacesAfterwards, 718 TransitionsBefore, 718 TransitionsAfterwards, 1096 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 320.8ms, 456 PlacesBefore, 456 PlacesAfterwards, 713 TransitionsBefore, 713 TransitionsAfterwards, 1094 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 352.0ms, 452 PlacesBefore, 452 PlacesAfterwards, 719 TransitionsBefore, 719 TransitionsAfterwards, 1114 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 355.2ms, 464 PlacesBefore, 464 PlacesAfterwards, 745 TransitionsBefore, 745 TransitionsAfterwards, 1176 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 374.3ms, 473 PlacesBefore, 473 PlacesAfterwards, 749 TransitionsBefore, 749 TransitionsAfterwards, 1182 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 381.3ms, 478 PlacesBefore, 478 PlacesAfterwards, 774 TransitionsBefore, 774 TransitionsAfterwards, 1230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 408.8ms, 490 PlacesBefore, 490 PlacesAfterwards, 798 TransitionsBefore, 798 TransitionsAfterwards, 1316 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 402.9ms, 498 PlacesBefore, 498 PlacesAfterwards, 807 TransitionsBefore, 807 TransitionsAfterwards, 1324 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 458.9ms, 504 PlacesBefore, 504 PlacesAfterwards, 813 TransitionsBefore, 813 TransitionsAfterwards, 1332 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 428.7ms, 511 PlacesBefore, 511 PlacesAfterwards, 826 TransitionsBefore, 826 TransitionsAfterwards, 1356 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 428.0ms, 512 PlacesBefore, 512 PlacesAfterwards, 827 TransitionsBefore, 827 TransitionsAfterwards, 1358 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 468.0ms, 522 PlacesBefore, 522 PlacesAfterwards, 829 TransitionsBefore, 829 TransitionsAfterwards, 1366 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 418.4ms, 524 PlacesBefore, 524 PlacesAfterwards, 830 TransitionsBefore, 830 TransitionsAfterwards, 1368 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 427.3ms, 529 PlacesBefore, 529 PlacesAfterwards, 824 TransitionsBefore, 824 TransitionsAfterwards, 1358 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 421.5ms, 528 PlacesBefore, 528 PlacesAfterwards, 819 TransitionsBefore, 819 TransitionsAfterwards, 1352 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 415.4ms, 520 PlacesBefore, 520 PlacesAfterwards, 818 TransitionsBefore, 818 TransitionsAfterwards, 1352 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 481.5ms, 522 PlacesBefore, 522 PlacesAfterwards, 815 TransitionsBefore, 815 TransitionsAfterwards, 1352 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 419.0ms, 515 PlacesBefore, 515 PlacesAfterwards, 824 TransitionsBefore, 824 TransitionsAfterwards, 1386 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 448.1ms, 523 PlacesBefore, 523 PlacesAfterwards, 868 TransitionsBefore, 868 TransitionsAfterwards, 1516 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 490.0ms, 530 PlacesBefore, 530 PlacesAfterwards, 896 TransitionsBefore, 896 TransitionsAfterwards, 1602 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 545.3ms, 535 PlacesBefore, 535 PlacesAfterwards, 913 TransitionsBefore, 913 TransitionsAfterwards, 1684 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 384.3ms, 534 PlacesBefore, 534 PlacesAfterwards, 914 TransitionsBefore, 914 TransitionsAfterwards, 1684 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 408.9ms, 536 PlacesBefore, 536 PlacesAfterwards, 926 TransitionsBefore, 926 TransitionsAfterwards, 1718 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 451.3ms, 545 PlacesBefore, 545 PlacesAfterwards, 936 TransitionsBefore, 936 TransitionsAfterwards, 1694 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 419.9ms, 552 PlacesBefore, 552 PlacesAfterwards, 938 TransitionsBefore, 938 TransitionsAfterwards, 1690 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 452.7ms, 559 PlacesBefore, 559 PlacesAfterwards, 948 TransitionsBefore, 948 TransitionsAfterwards, 1704 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 505.9ms, 568 PlacesBefore, 568 PlacesAfterwards, 955 TransitionsBefore, 955 TransitionsAfterwards, 1704 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 500.3ms, 575 PlacesBefore, 575 PlacesAfterwards, 955 TransitionsBefore, 955 TransitionsAfterwards, 1688 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 475.9ms, 581 PlacesBefore, 581 PlacesAfterwards, 961 TransitionsBefore, 961 TransitionsAfterwards, 1700 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 535.6ms, 588 PlacesBefore, 588 PlacesAfterwards, 967 TransitionsBefore, 967 TransitionsAfterwards, 1682 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 648.3ms, 593 PlacesBefore, 593 PlacesAfterwards, 977 TransitionsBefore, 977 TransitionsAfterwards, 1694 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 586.5ms, 600 PlacesBefore, 600 PlacesAfterwards, 990 TransitionsBefore, 990 TransitionsAfterwards, 1710 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 531.0ms, 607 PlacesBefore, 607 PlacesAfterwards, 1002 TransitionsBefore, 1002 TransitionsAfterwards, 1726 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 521.3ms, 615 PlacesBefore, 615 PlacesAfterwards, 1017 TransitionsBefore, 1017 TransitionsAfterwards, 1748 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 660.7ms, 624 PlacesBefore, 624 PlacesAfterwards, 1037 TransitionsBefore, 1037 TransitionsAfterwards, 1776 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 765.3ms, 632 PlacesBefore, 632 PlacesAfterwards, 1053 TransitionsBefore, 1053 TransitionsAfterwards, 1782 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 576.1ms, 640 PlacesBefore, 640 PlacesAfterwards, 1064 TransitionsBefore, 1064 TransitionsAfterwards, 1792 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 607.0ms, 649 PlacesBefore, 649 PlacesAfterwards, 1075 TransitionsBefore, 1075 TransitionsAfterwards, 1802 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 720.9ms, 656 PlacesBefore, 656 PlacesAfterwards, 1087 TransitionsBefore, 1087 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 650.5ms, 666 PlacesBefore, 666 PlacesAfterwards, 1095 TransitionsBefore, 1095 TransitionsAfterwards, 1832 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 645.2ms, 673 PlacesBefore, 673 PlacesAfterwards, 1101 TransitionsBefore, 1101 TransitionsAfterwards, 1828 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 679.2ms, 684 PlacesBefore, 684 PlacesAfterwards, 1126 TransitionsBefore, 1126 TransitionsAfterwards, 1852 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1024.8ms, 693 PlacesBefore, 693 PlacesAfterwards, 1141 TransitionsBefore, 1141 TransitionsAfterwards, 1796 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 693.8ms, 703 PlacesBefore, 703 PlacesAfterwards, 1154 TransitionsBefore, 1154 TransitionsAfterwards, 1788 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 709.2ms, 712 PlacesBefore, 712 PlacesAfterwards, 1172 TransitionsBefore, 1172 TransitionsAfterwards, 1800 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1125.2ms, 723 PlacesBefore, 723 PlacesAfterwards, 1189 TransitionsBefore, 1189 TransitionsAfterwards, 1768 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 933.9ms, 732 PlacesBefore, 732 PlacesAfterwards, 1202 TransitionsBefore, 1202 TransitionsAfterwards, 1520 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 731.1ms, 735 PlacesBefore, 735 PlacesAfterwards, 1199 TransitionsBefore, 1199 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 698.3ms, 739 PlacesBefore, 739 PlacesAfterwards, 1200 TransitionsBefore, 1200 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 718.8ms, 746 PlacesBefore, 746 PlacesAfterwards, 1199 TransitionsBefore, 1199 TransitionsAfterwards, 1516 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 750.1ms, 750 PlacesBefore, 750 PlacesAfterwards, 1203 TransitionsBefore, 1203 TransitionsAfterwards, 1518 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 717.7ms, 760 PlacesBefore, 760 PlacesAfterwards, 1200 TransitionsBefore, 1200 TransitionsAfterwards, 1530 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 755.8ms, 763 PlacesBefore, 763 PlacesAfterwards, 1201 TransitionsBefore, 1201 TransitionsAfterwards, 1530 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 970.8ms, 766 PlacesBefore, 766 PlacesAfterwards, 1196 TransitionsBefore, 1196 TransitionsAfterwards, 1528 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 678.9ms, 763 PlacesBefore, 763 PlacesAfterwards, 1191 TransitionsBefore, 1191 TransitionsAfterwards, 1534 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 661.1ms, 759 PlacesBefore, 759 PlacesAfterwards, 1189 TransitionsBefore, 1189 TransitionsAfterwards, 1524 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 655.6ms, 759 PlacesBefore, 759 PlacesAfterwards, 1187 TransitionsBefore, 1187 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 642.9ms, 760 PlacesBefore, 760 PlacesAfterwards, 1187 TransitionsBefore, 1187 TransitionsAfterwards, 1506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 721.5ms, 764 PlacesBefore, 764 PlacesAfterwards, 1185 TransitionsBefore, 1185 TransitionsAfterwards, 1498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 683.5ms, 762 PlacesBefore, 762 PlacesAfterwards, 1180 TransitionsBefore, 1180 TransitionsAfterwards, 1476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 661.3ms, 768 PlacesBefore, 768 PlacesAfterwards, 1183 TransitionsBefore, 1183 TransitionsAfterwards, 1482 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 682.6ms, 772 PlacesBefore, 772 PlacesAfterwards, 1182 TransitionsBefore, 1182 TransitionsAfterwards, 1482 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 675.8ms, 775 PlacesBefore, 775 PlacesAfterwards, 1179 TransitionsBefore, 1179 TransitionsAfterwards, 1480 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 665.7ms, 778 PlacesBefore, 778 PlacesAfterwards, 1175 TransitionsBefore, 1175 TransitionsAfterwards, 1498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 676.7ms, 776 PlacesBefore, 776 PlacesAfterwards, 1172 TransitionsBefore, 1172 TransitionsAfterwards, 1502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 722.9ms, 778 PlacesBefore, 778 PlacesAfterwards, 1156 TransitionsBefore, 1156 TransitionsAfterwards, 1464 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 642.4ms, 771 PlacesBefore, 771 PlacesAfterwards, 1152 TransitionsBefore, 1152 TransitionsAfterwards, 1454 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 657.1ms, 765 PlacesBefore, 765 PlacesAfterwards, 1160 TransitionsBefore, 1160 TransitionsAfterwards, 1470 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 707.0ms, 775 PlacesBefore, 775 PlacesAfterwards, 1162 TransitionsBefore, 1162 TransitionsAfterwards, 1484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 659.3ms, 778 PlacesBefore, 778 PlacesAfterwards, 1160 TransitionsBefore, 1160 TransitionsAfterwards, 1476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 781.3ms, 783 PlacesBefore, 783 PlacesAfterwards, 1160 TransitionsBefore, 1160 TransitionsAfterwards, 1478 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 678.2ms, 789 PlacesBefore, 789 PlacesAfterwards, 1151 TransitionsBefore, 1151 TransitionsAfterwards, 1466 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 647.3ms, 790 PlacesBefore, 790 PlacesAfterwards, 1137 TransitionsBefore, 1137 TransitionsAfterwards, 1448 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 665.1ms, 784 PlacesBefore, 784 PlacesAfterwards, 1166 TransitionsBefore, 1166 TransitionsAfterwards, 1520 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 703.4ms, 790 PlacesBefore, 790 PlacesAfterwards, 1172 TransitionsBefore, 1172 TransitionsAfterwards, 1520 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 729.8ms, 801 PlacesBefore, 801 PlacesAfterwards, 1177 TransitionsBefore, 1177 TransitionsAfterwards, 1524 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 825.7ms, 807 PlacesBefore, 807 PlacesAfterwards, 1189 TransitionsBefore, 1189 TransitionsAfterwards, 1534 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 700.3ms, 818 PlacesBefore, 818 PlacesAfterwards, 1189 TransitionsBefore, 1189 TransitionsAfterwards, 1534 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 754.4ms, 822 PlacesBefore, 822 PlacesAfterwards, 1194 TransitionsBefore, 1194 TransitionsAfterwards, 1548 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 725.2ms, 830 PlacesBefore, 830 PlacesAfterwards, 1196 TransitionsBefore, 1196 TransitionsAfterwards, 1550 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 781.3ms, 834 PlacesBefore, 834 PlacesAfterwards, 1195 TransitionsBefore, 1195 TransitionsAfterwards, 1546 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 725.0ms, 841 PlacesBefore, 841 PlacesAfterwards, 1191 TransitionsBefore, 1191 TransitionsAfterwards, 1542 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 787.2ms, 846 PlacesBefore, 846 PlacesAfterwards, 1187 TransitionsBefore, 1187 TransitionsAfterwards, 1546 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 864.8ms, 853 PlacesBefore, 853 PlacesAfterwards, 1190 TransitionsBefore, 1190 TransitionsAfterwards, 1550 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 865.9ms, 858 PlacesBefore, 858 PlacesAfterwards, 1188 TransitionsBefore, 1188 TransitionsAfterwards, 1550 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 745.3ms, 860 PlacesBefore, 860 PlacesAfterwards, 1186 TransitionsBefore, 1186 TransitionsAfterwards, 1550 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 737.2ms, 865 PlacesBefore, 865 PlacesAfterwards, 1154 TransitionsBefore, 1154 TransitionsAfterwards, 1498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 717.9ms, 851 PlacesBefore, 851 PlacesAfterwards, 1155 TransitionsBefore, 1155 TransitionsAfterwards, 1500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 685.8ms, 855 PlacesBefore, 855 PlacesAfterwards, 1150 TransitionsBefore, 1150 TransitionsAfterwards, 1506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 674.8ms, 846 PlacesBefore, 846 PlacesAfterwards, 1128 TransitionsBefore, 1128 TransitionsAfterwards, 1490 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 705.6ms, 839 PlacesBefore, 839 PlacesAfterwards, 1122 TransitionsBefore, 1122 TransitionsAfterwards, 1492 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 938.8ms, 842 PlacesBefore, 842 PlacesAfterwards, 1135 TransitionsBefore, 1135 TransitionsAfterwards, 1554 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 695.3ms, 841 PlacesBefore, 841 PlacesAfterwards, 1148 TransitionsBefore, 1148 TransitionsAfterwards, 1588 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 729.6ms, 843 PlacesBefore, 843 PlacesAfterwards, 1149 TransitionsBefore, 1149 TransitionsAfterwards, 1588 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 740.9ms, 851 PlacesBefore, 851 PlacesAfterwards, 1150 TransitionsBefore, 1150 TransitionsAfterwards, 1610 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 717.7ms, 846 PlacesBefore, 846 PlacesAfterwards, 1140 TransitionsBefore, 1140 TransitionsAfterwards, 1606 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 707.3ms, 839 PlacesBefore, 839 PlacesAfterwards, 1148 TransitionsBefore, 1148 TransitionsAfterwards, 1616 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 739.8ms, 850 PlacesBefore, 850 PlacesAfterwards, 1152 TransitionsBefore, 1152 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 709.6ms, 853 PlacesBefore, 853 PlacesAfterwards, 1150 TransitionsBefore, 1150 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 957.1ms, 856 PlacesBefore, 856 PlacesAfterwards, 1154 TransitionsBefore, 1154 TransitionsAfterwards, 1646 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 692.0ms, 825 PlacesBefore, 825 PlacesAfterwards, 1156 TransitionsBefore, 1156 TransitionsAfterwards, 1646 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 680.0ms, 829 PlacesBefore, 829 PlacesAfterwards, 1158 TransitionsBefore, 1158 TransitionsAfterwards, 1648 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 703.2ms, 831 PlacesBefore, 831 PlacesAfterwards, 1154 TransitionsBefore, 1154 TransitionsAfterwards, 1638 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 706.7ms, 831 PlacesBefore, 831 PlacesAfterwards, 1153 TransitionsBefore, 1153 TransitionsAfterwards, 1644 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 723.7ms, 834 PlacesBefore, 834 PlacesAfterwards, 1150 TransitionsBefore, 1150 TransitionsAfterwards, 1644 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 759.0ms, 830 PlacesBefore, 830 PlacesAfterwards, 1148 TransitionsBefore, 1148 TransitionsAfterwards, 1642 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 716.4ms, 833 PlacesBefore, 833 PlacesAfterwards, 1146 TransitionsBefore, 1146 TransitionsAfterwards, 1642 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 708.3ms, 831 PlacesBefore, 831 PlacesAfterwards, 1140 TransitionsBefore, 1140 TransitionsAfterwards, 1642 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 700.1ms, 826 PlacesBefore, 826 PlacesAfterwards, 1138 TransitionsBefore, 1138 TransitionsAfterwards, 1642 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 702.8ms, 826 PlacesBefore, 826 PlacesAfterwards, 1134 TransitionsBefore, 1134 TransitionsAfterwards, 1638 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 900.7ms, 824 PlacesBefore, 824 PlacesAfterwards, 1129 TransitionsBefore, 1129 TransitionsAfterwards, 1638 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 692.2ms, 816 PlacesBefore, 816 PlacesAfterwards, 1114 TransitionsBefore, 1114 TransitionsAfterwards, 1580 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 754.3ms, 819 PlacesBefore, 819 PlacesAfterwards, 1113 TransitionsBefore, 1113 TransitionsAfterwards, 1580 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 685.6ms, 826 PlacesBefore, 826 PlacesAfterwards, 1106 TransitionsBefore, 1106 TransitionsAfterwards, 1550 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 669.0ms, 822 PlacesBefore, 822 PlacesAfterwards, 1104 TransitionsBefore, 1104 TransitionsAfterwards, 1540 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 730.1ms, 826 PlacesBefore, 826 PlacesAfterwards, 1106 TransitionsBefore, 1106 TransitionsAfterwards, 1544 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 678.0ms, 832 PlacesBefore, 832 PlacesAfterwards, 1103 TransitionsBefore, 1103 TransitionsAfterwards, 1536 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 700.3ms, 831 PlacesBefore, 831 PlacesAfterwards, 1098 TransitionsBefore, 1098 TransitionsAfterwards, 1508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 692.4ms, 834 PlacesBefore, 834 PlacesAfterwards, 1097 TransitionsBefore, 1097 TransitionsAfterwards, 1508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 698.4ms, 836 PlacesBefore, 836 PlacesAfterwards, 1092 TransitionsBefore, 1092 TransitionsAfterwards, 1488 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 774.9ms, 836 PlacesBefore, 836 PlacesAfterwards, 1097 TransitionsBefore, 1097 TransitionsAfterwards, 1500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 699.3ms, 841 PlacesBefore, 841 PlacesAfterwards, 1102 TransitionsBefore, 1102 TransitionsAfterwards, 1510 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 711.7ms, 850 PlacesBefore, 850 PlacesAfterwards, 1101 TransitionsBefore, 1101 TransitionsAfterwards, 1508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 778.8ms, 849 PlacesBefore, 849 PlacesAfterwards, 1096 TransitionsBefore, 1096 TransitionsAfterwards, 1496 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 659.7ms, 843 PlacesBefore, 843 PlacesAfterwards, 1097 TransitionsBefore, 1097 TransitionsAfterwards, 1500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 680.7ms, 849 PlacesBefore, 849 PlacesAfterwards, 1093 TransitionsBefore, 1093 TransitionsAfterwards, 1490 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 695.8ms, 844 PlacesBefore, 844 PlacesAfterwards, 1091 TransitionsBefore, 1091 TransitionsAfterwards, 1486 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 686.2ms, 841 PlacesBefore, 841 PlacesAfterwards, 1088 TransitionsBefore, 1088 TransitionsAfterwards, 1478 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 708.1ms, 833 PlacesBefore, 833 PlacesAfterwards, 1086 TransitionsBefore, 1086 TransitionsAfterwards, 1472 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 668.4ms, 831 PlacesBefore, 831 PlacesAfterwards, 1084 TransitionsBefore, 1084 TransitionsAfterwards, 1468 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 670.6ms, 839 PlacesBefore, 839 PlacesAfterwards, 1064 TransitionsBefore, 1064 TransitionsAfterwards, 1462 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 670.3ms, 821 PlacesBefore, 821 PlacesAfterwards, 1058 TransitionsBefore, 1058 TransitionsAfterwards, 1444 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 663.4ms, 813 PlacesBefore, 813 PlacesAfterwards, 1053 TransitionsBefore, 1053 TransitionsAfterwards, 1434 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 657.9ms, 806 PlacesBefore, 806 PlacesAfterwards, 1050 TransitionsBefore, 1050 TransitionsAfterwards, 1442 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 614.0ms, 814 PlacesBefore, 814 PlacesAfterwards, 1049 TransitionsBefore, 1049 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 627.0ms, 814 PlacesBefore, 814 PlacesAfterwards, 1036 TransitionsBefore, 1036 TransitionsAfterwards, 1436 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 618.2ms, 775 PlacesBefore, 775 PlacesAfterwards, 1032 TransitionsBefore, 1032 TransitionsAfterwards, 1430 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 606.0ms, 774 PlacesBefore, 774 PlacesAfterwards, 1030 TransitionsBefore, 1030 TransitionsAfterwards, 1430 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 596.5ms, 771 PlacesBefore, 771 PlacesAfterwards, 1024 TransitionsBefore, 1024 TransitionsAfterwards, 1424 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 546.6ms, 772 PlacesBefore, 772 PlacesAfterwards, 1020 TransitionsBefore, 1020 TransitionsAfterwards, 1424 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 541.7ms, 768 PlacesBefore, 768 PlacesAfterwards, 1015 TransitionsBefore, 1015 TransitionsAfterwards, 1424 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 513.0ms, 759 PlacesBefore, 759 PlacesAfterwards, 973 TransitionsBefore, 973 TransitionsAfterwards, 1324 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 501.7ms, 720 PlacesBefore, 720 PlacesAfterwards, 968 TransitionsBefore, 968 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 533.2ms, 718 PlacesBefore, 718 PlacesAfterwards, 964 TransitionsBefore, 964 TransitionsAfterwards, 1324 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 463.9ms, 718 PlacesBefore, 718 PlacesAfterwards, 958 TransitionsBefore, 958 TransitionsAfterwards, 1328 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 504.9ms, 717 PlacesBefore, 717 PlacesAfterwards, 947 TransitionsBefore, 947 TransitionsAfterwards, 1322 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 458.2ms, 713 PlacesBefore, 713 PlacesAfterwards, 926 TransitionsBefore, 926 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 535.4ms, 705 PlacesBefore, 705 PlacesAfterwards, 919 TransitionsBefore, 919 TransitionsAfterwards, 1312 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 477.8ms, 699 PlacesBefore, 699 PlacesAfterwards, 911 TransitionsBefore, 911 TransitionsAfterwards, 1316 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 450.6ms, 699 PlacesBefore, 699 PlacesAfterwards, 904 TransitionsBefore, 904 TransitionsAfterwards, 1312 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 451.1ms, 693 PlacesBefore, 693 PlacesAfterwards, 895 TransitionsBefore, 895 TransitionsAfterwards, 1294 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 486.7ms, 688 PlacesBefore, 688 PlacesAfterwards, 888 TransitionsBefore, 888 TransitionsAfterwards, 1290 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 451.7ms, 680 PlacesBefore, 680 PlacesAfterwards, 876 TransitionsBefore, 876 TransitionsAfterwards, 1274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 417.2ms, 662 PlacesBefore, 662 PlacesAfterwards, 877 TransitionsBefore, 877 TransitionsAfterwards, 1274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 409.7ms, 668 PlacesBefore, 668 PlacesAfterwards, 873 TransitionsBefore, 873 TransitionsAfterwards, 1258 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 412.4ms, 674 PlacesBefore, 674 PlacesAfterwards, 860 TransitionsBefore, 860 TransitionsAfterwards, 1192 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 412.7ms, 672 PlacesBefore, 672 PlacesAfterwards, 859 TransitionsBefore, 859 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 396.3ms, 678 PlacesBefore, 678 PlacesAfterwards, 846 TransitionsBefore, 846 TransitionsAfterwards, 1130 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 437.6ms, 672 PlacesBefore, 672 PlacesAfterwards, 855 TransitionsBefore, 855 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 423.4ms, 682 PlacesBefore, 682 PlacesAfterwards, 866 TransitionsBefore, 866 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 421.9ms, 695 PlacesBefore, 695 PlacesAfterwards, 862 TransitionsBefore, 862 TransitionsAfterwards, 1094 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 447.8ms, 693 PlacesBefore, 693 PlacesAfterwards, 870 TransitionsBefore, 870 TransitionsAfterwards, 1102 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 463.5ms, 703 PlacesBefore, 703 PlacesAfterwards, 881 TransitionsBefore, 881 TransitionsAfterwards, 1116 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 441.9ms, 713 PlacesBefore, 713 PlacesAfterwards, 884 TransitionsBefore, 884 TransitionsAfterwards, 1116 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 502.8ms, 720 PlacesBefore, 720 PlacesAfterwards, 890 TransitionsBefore, 890 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 427.0ms, 726 PlacesBefore, 726 PlacesAfterwards, 892 TransitionsBefore, 892 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 497.0ms, 741 PlacesBefore, 741 PlacesAfterwards, 895 TransitionsBefore, 895 TransitionsAfterwards, 1124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 450.8ms, 745 PlacesBefore, 745 PlacesAfterwards, 893 TransitionsBefore, 893 TransitionsAfterwards, 1120 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 611.3ms, 747 PlacesBefore, 747 PlacesAfterwards, 896 TransitionsBefore, 896 TransitionsAfterwards, 1118 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 487.0ms, 743 PlacesBefore, 743 PlacesAfterwards, 908 TransitionsBefore, 908 TransitionsAfterwards, 1118 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 460.0ms, 748 PlacesBefore, 748 PlacesAfterwards, 912 TransitionsBefore, 912 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 483.0ms, 758 PlacesBefore, 758 PlacesAfterwards, 914 TransitionsBefore, 914 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 475.4ms, 764 PlacesBefore, 764 PlacesAfterwards, 915 TransitionsBefore, 915 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 483.0ms, 764 PlacesBefore, 764 PlacesAfterwards, 916 TransitionsBefore, 916 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 515.0ms, 770 PlacesBefore, 770 PlacesAfterwards, 917 TransitionsBefore, 917 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 624.0ms, 776 PlacesBefore, 776 PlacesAfterwards, 914 TransitionsBefore, 914 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 487.1ms, 772 PlacesBefore, 772 PlacesAfterwards, 915 TransitionsBefore, 915 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 483.5ms, 779 PlacesBefore, 779 PlacesAfterwards, 917 TransitionsBefore, 917 TransitionsAfterwards, 1126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 531.5ms, 782 PlacesBefore, 782 PlacesAfterwards, 914 TransitionsBefore, 914 TransitionsAfterwards, 1126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 468.5ms, 781 PlacesBefore, 781 PlacesAfterwards, 914 TransitionsBefore, 914 TransitionsAfterwards, 1124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 474.1ms, 789 PlacesBefore, 789 PlacesAfterwards, 912 TransitionsBefore, 912 TransitionsAfterwards, 1124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 454.2ms, 791 PlacesBefore, 791 PlacesAfterwards, 911 TransitionsBefore, 911 TransitionsAfterwards, 1124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 469.1ms, 790 PlacesBefore, 790 PlacesAfterwards, 907 TransitionsBefore, 907 TransitionsAfterwards, 1124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 636.7ms, 784 PlacesBefore, 784 PlacesAfterwards, 905 TransitionsBefore, 905 TransitionsAfterwards, 1124 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 479.8ms, 783 PlacesBefore, 783 PlacesAfterwards, 900 TransitionsBefore, 900 TransitionsAfterwards, 1126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 476.0ms, 782 PlacesBefore, 782 PlacesAfterwards, 901 TransitionsBefore, 901 TransitionsAfterwards, 1130 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 483.1ms, 788 PlacesBefore, 788 PlacesAfterwards, 902 TransitionsBefore, 902 TransitionsAfterwards, 1132 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 472.4ms, 794 PlacesBefore, 794 PlacesAfterwards, 899 TransitionsBefore, 899 TransitionsAfterwards, 1128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 463.7ms, 795 PlacesBefore, 795 PlacesAfterwards, 896 TransitionsBefore, 896 TransitionsAfterwards, 1120 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 547.9ms, 795 PlacesBefore, 795 PlacesAfterwards, 888 TransitionsBefore, 888 TransitionsAfterwards, 1102 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 478.9ms, 793 PlacesBefore, 793 PlacesAfterwards, 877 TransitionsBefore, 877 TransitionsAfterwards, 1080 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 476.0ms, 782 PlacesBefore, 782 PlacesAfterwards, 882 TransitionsBefore, 882 TransitionsAfterwards, 1092 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 461.0ms, 789 PlacesBefore, 789 PlacesAfterwards, 875 TransitionsBefore, 875 TransitionsAfterwards, 1080 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 462.3ms, 782 PlacesBefore, 782 PlacesAfterwards, 870 TransitionsBefore, 870 TransitionsAfterwards, 1062 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 461.6ms, 782 PlacesBefore, 782 PlacesAfterwards, 871 TransitionsBefore, 871 TransitionsAfterwards, 1064 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 468.3ms, 785 PlacesBefore, 785 PlacesAfterwards, 869 TransitionsBefore, 869 TransitionsAfterwards, 1058 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 439.6ms, 783 PlacesBefore, 783 PlacesAfterwards, 865 TransitionsBefore, 865 TransitionsAfterwards, 1048 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 495.6ms, 779 PlacesBefore, 779 PlacesAfterwards, 860 TransitionsBefore, 860 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 469.1ms, 767 PlacesBefore, 767 PlacesAfterwards, 874 TransitionsBefore, 874 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 462.0ms, 774 PlacesBefore, 774 PlacesAfterwards, 879 TransitionsBefore, 879 TransitionsAfterwards, 1042 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 480.1ms, 784 PlacesBefore, 784 PlacesAfterwards, 902 TransitionsBefore, 902 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 491.5ms, 793 PlacesBefore, 793 PlacesAfterwards, 913 TransitionsBefore, 913 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 509.9ms, 799 PlacesBefore, 799 PlacesAfterwards, 925 TransitionsBefore, 925 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 518.8ms, 807 PlacesBefore, 807 PlacesAfterwards, 939 TransitionsBefore, 939 TransitionsAfterwards, 1048 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 512.3ms, 815 PlacesBefore, 815 PlacesAfterwards, 946 TransitionsBefore, 946 TransitionsAfterwards, 1050 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 550.8ms, 821 PlacesBefore, 821 PlacesAfterwards, 957 TransitionsBefore, 957 TransitionsAfterwards, 1054 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 594.1ms, 830 PlacesBefore, 830 PlacesAfterwards, 964 TransitionsBefore, 964 TransitionsAfterwards, 1054 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 585.0ms, 836 PlacesBefore, 836 PlacesAfterwards, 973 TransitionsBefore, 973 TransitionsAfterwards, 1056 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 604.0ms, 843 PlacesBefore, 843 PlacesAfterwards, 985 TransitionsBefore, 985 TransitionsAfterwards, 1064 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 606.7ms, 850 PlacesBefore, 850 PlacesAfterwards, 1000 TransitionsBefore, 1000 TransitionsAfterwards, 1080 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 653.8ms, 856 PlacesBefore, 856 PlacesAfterwards, 1010 TransitionsBefore, 1010 TransitionsAfterwards, 1088 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 622.8ms, 861 PlacesBefore, 861 PlacesAfterwards, 1021 TransitionsBefore, 1021 TransitionsAfterwards, 1094 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 655.5ms, 867 PlacesBefore, 867 PlacesAfterwards, 1032 TransitionsBefore, 1032 TransitionsAfterwards, 1102 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 907.0ms, 875 PlacesBefore, 874 PlacesAfterwards, 1042 TransitionsBefore, 1042 TransitionsAfterwards, 1114 CoEnabledTransitionPairs, 2 FixpointIterations, 8 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 578.1ms, 878 PlacesBefore, 878 PlacesAfterwards, 1048 TransitionsBefore, 1048 TransitionsAfterwards, 1110 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 569.2ms, 875 PlacesBefore, 875 PlacesAfterwards, 1044 TransitionsBefore, 1044 TransitionsAfterwards, 1108 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 568.8ms, 873 PlacesBefore, 873 PlacesAfterwards, 1045 TransitionsBefore, 1045 TransitionsAfterwards, 1108 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 554.2ms, 878 PlacesBefore, 878 PlacesAfterwards, 1042 TransitionsBefore, 1042 TransitionsAfterwards, 1108 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 551.3ms, 877 PlacesBefore, 877 PlacesAfterwards, 1037 TransitionsBefore, 1037 TransitionsAfterwards, 1092 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 549.7ms, 870 PlacesBefore, 870 PlacesAfterwards, 1035 TransitionsBefore, 1035 TransitionsAfterwards, 1082 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 560.1ms, 870 PlacesBefore, 870 PlacesAfterwards, 1036 TransitionsBefore, 1036 TransitionsAfterwards, 1084 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 578.2ms, 872 PlacesBefore, 872 PlacesAfterwards, 1033 TransitionsBefore, 1033 TransitionsAfterwards, 1076 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 543.5ms, 870 PlacesBefore, 870 PlacesAfterwards, 1032 TransitionsBefore, 1032 TransitionsAfterwards, 1074 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 760.3ms, 873 PlacesBefore, 873 PlacesAfterwards, 1028 TransitionsBefore, 1028 TransitionsAfterwards, 1066 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 559.5ms, 866 PlacesBefore, 866 PlacesAfterwards, 1029 TransitionsBefore, 1029 TransitionsAfterwards, 1068 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 531.2ms, 866 PlacesBefore, 866 PlacesAfterwards, 1030 TransitionsBefore, 1030 TransitionsAfterwards, 1068 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 582.1ms, 872 PlacesBefore, 872 PlacesAfterwards, 1028 TransitionsBefore, 1028 TransitionsAfterwards, 1064 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 547.1ms, 868 PlacesBefore, 868 PlacesAfterwards, 1026 TransitionsBefore, 1026 TransitionsAfterwards, 1062 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 571.4ms, 870 PlacesBefore, 870 PlacesAfterwards, 1023 TransitionsBefore, 1023 TransitionsAfterwards, 1054 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 557.3ms, 870 PlacesBefore, 870 PlacesAfterwards, 1021 TransitionsBefore, 1021 TransitionsAfterwards, 1054 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 576.5ms, 869 PlacesBefore, 869 PlacesAfterwards, 1022 TransitionsBefore, 1022 TransitionsAfterwards, 1054 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 31, Positive conditional cache size: 0, Positive unconditional cache size: 31, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 45). Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 24.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 841205.0ms, OverallIterations: 290, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 676504.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 234.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3640 SDtfs, 1028 SDslu, 5319 SDs, 0 SdLazy, 60535 SolverSat, 2124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21983.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2349 GetRequests, 413 SyntacticMatches, 287 SemanticMatches, 1649 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10807.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39846occurred in iteration=144, InterpolantAutomatonStates: 2221, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 101.6ms SsaConstructionTime, 327.3ms SatisfiabilityAnalysisTime, 14712.5ms InterpolantComputationTime, 4977 NumberOfCodeBlocks, 4977 NumberOfCodeBlocksAsserted, 290 NumberOfCheckSat, 4687 ConstructedInterpolants, 0 QuantifiedInterpolants, 36377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 290 InterpolantComputations, 290 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown