/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy11.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 17:46:04,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 17:46:04,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 17:46:04,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 17:46:04,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 17:46:04,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 17:46:04,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 17:46:04,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 17:46:04,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 17:46:04,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 17:46:04,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 17:46:04,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 17:46:04,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 17:46:04,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 17:46:04,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 17:46:04,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 17:46:04,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 17:46:04,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 17:46:04,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 17:46:04,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 17:46:04,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 17:46:04,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 17:46:04,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 17:46:04,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 17:46:04,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-26 17:46:04,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-26 17:46:04,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-26 17:46:04,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-26 17:46:04,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-26 17:46:04,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-03-26 17:46:04,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 17:46:04,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 17:46:04,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 17:46:04,613 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 17:46:04,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 17:46:04,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 17:46:04,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 17:46:04,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 17:46:04,648 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 17:46:04,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 17:46:04,649 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 17:46:04,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 17:46:04,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 17:46:04,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 17:46:04,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 17:46:04,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 17:46:04,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 17:46:04,650 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 17:46:04,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 17:46:04,651 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 17:46:04,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 17:46:04,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 17:46:04,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 17:46:04,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 17:46:04,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 17:46:04,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 17:46:04,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 17:46:04,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 17:46:04,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 17:46:04,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 17:46:04,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 17:46:04,652 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 17:46:04,653 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 17:46:04,653 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 17:46:04,653 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 17:46:04,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 17:46:04,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 17:46:04,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 17:46:04,955 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 17:46:04,956 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 17:46:04,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy11.wvr.bpl [2021-03-26 17:46:04,958 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy11.wvr.bpl' [2021-03-26 17:46:04,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 17:46:04,989 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 17:46:04,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 17:46:04,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 17:46:04,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 17:46:05,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:04" (1/1) ... [2021-03-26 17:46:05,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:04" (1/1) ... [2021-03-26 17:46:05,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 17:46:05,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 17:46:05,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 17:46:05,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 17:46:05,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:04" (1/1) ... [2021-03-26 17:46:05,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:04" (1/1) ... [2021-03-26 17:46:05,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:04" (1/1) ... [2021-03-26 17:46:05,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:04" (1/1) ... [2021-03-26 17:46:05,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:04" (1/1) ... [2021-03-26 17:46:05,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:04" (1/1) ... [2021-03-26 17:46:05,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:04" (1/1) ... [2021-03-26 17:46:05,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 17:46:05,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 17:46:05,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 17:46:05,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 17:46:05,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:04" (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 [2021-03-26 17:46:05,076 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 17:46:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 17:46:05,078 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 17:46:05,078 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 17:46:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 17:46:05,078 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 17:46:05,078 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 17:46:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 17:46:05,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 17:46:05,079 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 17:46:05,214 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 17:46:05,214 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 17:46:05,215 INFO L202 PluginConnector]: Adding new model easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:46:05 BoogieIcfgContainer [2021-03-26 17:46:05,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 17:46:05,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 17:46:05,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 17:46:05,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 17:46:05,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:04" (1/2) ... [2021-03-26 17:46:05,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761d49b9 and model type easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 05:46:05, skipping insertion in model container [2021-03-26 17:46:05,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:46:05" (2/2) ... [2021-03-26 17:46:05,221 INFO L111 eAbstractionObserver]: Analyzing ICFG easy11.wvr.bpl [2021-03-26 17:46:05,228 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 17:46:05,232 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 17:46:05,232 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 17:46:05,248 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,249 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,249 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,249 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,249 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,250 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,250 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,250 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,250 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,250 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,250 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,251 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,251 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,251 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,251 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,252 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,252 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,252 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,252 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,252 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,252 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,253 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,253 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,253 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,255 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,258 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 17:46:05,263 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-26 17:46:05,278 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 17:46:05,294 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 17:46:05,294 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 17:46:05,294 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 17:46:05,294 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 17:46:05,295 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 17:46:05,295 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 17:46:05,295 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 17:46:05,295 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 17:46:05,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 62 flow [2021-03-26 17:46:05,318 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-26 17:46:05,318 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 17:46:05,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2021-03-26 17:46:05,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 23 transitions, 62 flow [2021-03-26 17:46:05,323 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 19 transitions, 50 flow [2021-03-26 17:46:05,324 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:05,336 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 19 transitions, 50 flow [2021-03-26 17:46:05,338 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 19 transitions, 50 flow [2021-03-26 17:46:05,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 50 flow [2021-03-26 17:46:05,344 INFO L129 PetriNetUnfolder]: 2/19 cut-off events. [2021-03-26 17:46:05,344 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 17:46:05,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 19 events. 2/19 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2021-03-26 17:46:05,346 INFO L142 LiptonReduction]: Number of co-enabled transitions 96 [2021-03-26 17:46:05,490 INFO L154 LiptonReduction]: Checked pairs total: 38 [2021-03-26 17:46:05,490 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 17:46:05,492 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-03-26 17:46:05,501 INFO L129 PetriNetUnfolder]: 2/11 cut-off events. [2021-03-26 17:46:05,501 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 17:46:05,501 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:05,501 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:05,502 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:05,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:05,505 INFO L82 PathProgramCache]: Analyzing trace with hash -2146208904, now seen corresponding path program 1 times [2021-03-26 17:46:05,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:05,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866626714] [2021-03-26 17:46:05,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:05,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:05,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:46:05,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:05,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:05,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:05,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:05,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:05,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:05,690 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:05,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:05,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:05,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866626714] [2021-03-26 17:46:05,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:05,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:05,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788325874] [2021-03-26 17:46:05,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:05,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:05,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:05,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:46:05,722 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2021-03-26 17:46:05,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 12 transitions, 36 flow. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:05,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:05,723 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2021-03-26 17:46:05,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:05,863 INFO L129 PetriNetUnfolder]: 21/49 cut-off events. [2021-03-26 17:46:05,863 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-03-26 17:46:05,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 49 events. 21/49 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 113 event pairs, 2 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 90. Up to 16 conditions per place. [2021-03-26 17:46:05,872 INFO L132 encePairwiseOnDemand]: 22/30 looper letters, 18 selfloop transitions, 10 changer transitions 1/31 dead transitions. [2021-03-26 17:46:05,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 31 transitions, 141 flow [2021-03-26 17:46:05,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 17:46:05,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 17:46:05,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 86 transitions. [2021-03-26 17:46:05,882 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4095238095238095 [2021-03-26 17:46:05,883 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 86 transitions. [2021-03-26 17:46:05,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 86 transitions. [2021-03-26 17:46:05,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:05,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 86 transitions. [2021-03-26 17:46:05,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:05,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 30.0) internal successors, (240), 8 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:05,900 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 30.0) internal successors, (240), 8 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:05,902 INFO L185 Difference]: Start difference. First operand has 17 places, 12 transitions, 36 flow. Second operand 7 states and 86 transitions. [2021-03-26 17:46:05,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 31 transitions, 141 flow [2021-03-26 17:46:05,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 31 transitions, 127 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 17:46:05,912 INFO L241 Difference]: Finished difference. Result has 24 places, 21 transitions, 95 flow [2021-03-26 17:46:05,914 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=95, PETRI_PLACES=24, PETRI_TRANSITIONS=21} [2021-03-26 17:46:05,914 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 7 predicate places. [2021-03-26 17:46:05,914 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:05,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 21 transitions, 95 flow [2021-03-26 17:46:05,915 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 21 transitions, 95 flow [2021-03-26 17:46:05,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 21 transitions, 95 flow [2021-03-26 17:46:05,926 INFO L129 PetriNetUnfolder]: 8/27 cut-off events. [2021-03-26 17:46:05,926 INFO L130 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2021-03-26 17:46:05,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 27 events. 8/27 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 54 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 58. Up to 8 conditions per place. [2021-03-26 17:46:05,928 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-26 17:46:05,957 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 17:46:05,958 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 17:46:05,958 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-26 17:46:05,961 INFO L480 AbstractCegarLoop]: Abstraction has has 22 places, 20 transitions, 89 flow [2021-03-26 17:46:05,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:05,961 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:05,962 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:05,962 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 17:46:05,964 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:05,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:05,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1795365850, now seen corresponding path program 2 times [2021-03-26 17:46:05,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:05,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584721603] [2021-03-26 17:46:05,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:06,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:46:06,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:06,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:06,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:06,043 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:06,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:06,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:06,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584721603] [2021-03-26 17:46:06,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:06,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:06,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447502494] [2021-03-26 17:46:06,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:06,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:06,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:06,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:46:06,056 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2021-03-26 17:46:06,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 20 transitions, 89 flow. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,056 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:06,056 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2021-03-26 17:46:06,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:06,152 INFO L129 PetriNetUnfolder]: 32/65 cut-off events. [2021-03-26 17:46:06,152 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2021-03-26 17:46:06,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 65 events. 32/65 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 152 event pairs, 4 based on Foata normal form. 1/66 useless extension candidates. Maximal degree in co-relation 206. Up to 29 conditions per place. [2021-03-26 17:46:06,154 INFO L132 encePairwiseOnDemand]: 23/31 looper letters, 18 selfloop transitions, 17 changer transitions 1/38 dead transitions. [2021-03-26 17:46:06,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 38 transitions, 247 flow [2021-03-26 17:46:06,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 17:46:06,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 17:46:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 86 transitions. [2021-03-26 17:46:06,158 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39631336405529954 [2021-03-26 17:46:06,158 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 86 transitions. [2021-03-26 17:46:06,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 86 transitions. [2021-03-26 17:46:06,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:06,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 86 transitions. [2021-03-26 17:46:06,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 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) [2021-03-26 17:46:06,162 INFO L81 ComplementDD]: Finished complementDD. Result has 8 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) [2021-03-26 17:46:06,162 INFO L185 Difference]: Start difference. First operand has 22 places, 20 transitions, 89 flow. Second operand 7 states and 86 transitions. [2021-03-26 17:46:06,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 38 transitions, 247 flow [2021-03-26 17:46:06,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 38 transitions, 227 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-26 17:46:06,165 INFO L241 Difference]: Finished difference. Result has 31 places, 33 transitions, 206 flow [2021-03-26 17:46:06,166 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=206, PETRI_PLACES=31, PETRI_TRANSITIONS=33} [2021-03-26 17:46:06,166 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 14 predicate places. [2021-03-26 17:46:06,166 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:06,166 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 33 transitions, 206 flow [2021-03-26 17:46:06,167 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 33 transitions, 206 flow [2021-03-26 17:46:06,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 33 transitions, 206 flow [2021-03-26 17:46:06,175 INFO L129 PetriNetUnfolder]: 25/51 cut-off events. [2021-03-26 17:46:06,175 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2021-03-26 17:46:06,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 51 events. 25/51 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 117 event pairs, 1 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 167. Up to 19 conditions per place. [2021-03-26 17:46:06,177 INFO L142 LiptonReduction]: Number of co-enabled transitions 40 [2021-03-26 17:46:06,207 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:06,207 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 17:46:06,208 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-26 17:46:06,209 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 33 transitions, 210 flow [2021-03-26 17:46:06,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,209 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:06,210 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:06,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 17:46:06,210 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:06,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:06,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1641119752, now seen corresponding path program 3 times [2021-03-26 17:46:06,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:06,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123486098] [2021-03-26 17:46:06,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:06,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:46:06,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:06,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:06,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:06,278 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:06,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:06,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:06,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123486098] [2021-03-26 17:46:06,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:06,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:06,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175177533] [2021-03-26 17:46:06,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:06,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:06,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:06,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:46:06,289 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 32 [2021-03-26 17:46:06,290 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 33 transitions, 210 flow. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:06,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 32 [2021-03-26 17:46:06,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:06,403 INFO L129 PetriNetUnfolder]: 32/66 cut-off events. [2021-03-26 17:46:06,403 INFO L130 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2021-03-26 17:46:06,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 66 events. 32/66 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 162 event pairs, 2 based on Foata normal form. 1/67 useless extension candidates. Maximal degree in co-relation 263. Up to 30 conditions per place. [2021-03-26 17:46:06,404 INFO L132 encePairwiseOnDemand]: 23/32 looper letters, 20 selfloop transitions, 19 changer transitions 1/42 dead transitions. [2021-03-26 17:46:06,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 42 transitions, 335 flow [2021-03-26 17:46:06,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 17:46:06,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 17:46:06,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 88 transitions. [2021-03-26 17:46:06,407 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2021-03-26 17:46:06,407 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 88 transitions. [2021-03-26 17:46:06,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 88 transitions. [2021-03-26 17:46:06,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:06,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 88 transitions. [2021-03-26 17:46:06,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,411 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,411 INFO L185 Difference]: Start difference. First operand has 30 places, 33 transitions, 210 flow. Second operand 7 states and 88 transitions. [2021-03-26 17:46:06,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 42 transitions, 335 flow [2021-03-26 17:46:06,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 42 transitions, 317 flow, removed 9 selfloop flow, removed 1 redundant places. [2021-03-26 17:46:06,417 INFO L241 Difference]: Finished difference. Result has 39 places, 37 transitions, 280 flow [2021-03-26 17:46:06,417 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=280, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2021-03-26 17:46:06,417 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 22 predicate places. [2021-03-26 17:46:06,418 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:06,418 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 37 transitions, 280 flow [2021-03-26 17:46:06,420 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 37 transitions, 280 flow [2021-03-26 17:46:06,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 37 transitions, 280 flow [2021-03-26 17:46:06,427 INFO L129 PetriNetUnfolder]: 24/52 cut-off events. [2021-03-26 17:46:06,427 INFO L130 PetriNetUnfolder]: For 80/82 co-relation queries the response was YES. [2021-03-26 17:46:06,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 52 events. 24/52 cut-off events. For 80/82 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 123 event pairs, 1 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 202. Up to 18 conditions per place. [2021-03-26 17:46:06,430 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-26 17:46:06,490 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:06,490 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 17:46:06,494 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-03-26 17:46:06,497 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 37 transitions, 289 flow [2021-03-26 17:46:06,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,497 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:06,497 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:06,497 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 17:46:06,497 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:06,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:06,498 INFO L82 PathProgramCache]: Analyzing trace with hash -2137397495, now seen corresponding path program 1 times [2021-03-26 17:46:06,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:06,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640348530] [2021-03-26 17:46:06,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:06,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:06,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:06,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:06,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:06,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:06,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640348530] [2021-03-26 17:46:06,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:06,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 17:46:06,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503576720] [2021-03-26 17:46:06,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 17:46:06,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:06,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 17:46:06,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 17:46:06,528 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 35 [2021-03-26 17:46:06,528 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 289 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:06,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 35 [2021-03-26 17:46:06,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:06,559 INFO L129 PetriNetUnfolder]: 25/61 cut-off events. [2021-03-26 17:46:06,559 INFO L130 PetriNetUnfolder]: For 114/120 co-relation queries the response was YES. [2021-03-26 17:46:06,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 61 events. 25/61 cut-off events. For 114/120 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 165 event pairs, 0 based on Foata normal form. 4/63 useless extension candidates. Maximal degree in co-relation 249. Up to 18 conditions per place. [2021-03-26 17:46:06,560 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 13 selfloop transitions, 11 changer transitions 0/40 dead transitions. [2021-03-26 17:46:06,560 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 40 transitions, 349 flow [2021-03-26 17:46:06,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 17:46:06,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 17:46:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2021-03-26 17:46:06,562 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2021-03-26 17:46:06,562 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 88 transitions. [2021-03-26 17:46:06,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 88 transitions. [2021-03-26 17:46:06,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:06,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 88 transitions. [2021-03-26 17:46:06,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,564 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,564 INFO L185 Difference]: Start difference. First operand has 38 places, 37 transitions, 289 flow. Second operand 4 states and 88 transitions. [2021-03-26 17:46:06,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 40 transitions, 349 flow [2021-03-26 17:46:06,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 40 transitions, 295 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-03-26 17:46:06,569 INFO L241 Difference]: Finished difference. Result has 38 places, 38 transitions, 275 flow [2021-03-26 17:46:06,570 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=275, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2021-03-26 17:46:06,570 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 21 predicate places. [2021-03-26 17:46:06,570 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:06,570 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 38 transitions, 275 flow [2021-03-26 17:46:06,570 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 38 transitions, 275 flow [2021-03-26 17:46:06,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 38 transitions, 275 flow [2021-03-26 17:46:06,577 INFO L129 PetriNetUnfolder]: 25/59 cut-off events. [2021-03-26 17:46:06,577 INFO L130 PetriNetUnfolder]: For 103/105 co-relation queries the response was YES. [2021-03-26 17:46:06,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 59 events. 25/59 cut-off events. For 103/105 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 157 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 197. Up to 17 conditions per place. [2021-03-26 17:46:06,578 INFO L142 LiptonReduction]: Number of co-enabled transitions 36 [2021-03-26 17:46:06,581 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:06,581 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:06,581 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 17:46:06,584 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 275 flow [2021-03-26 17:46:06,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,585 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:06,585 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:06,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 17:46:06,585 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:06,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:06,585 INFO L82 PathProgramCache]: Analyzing trace with hash -479148765, now seen corresponding path program 1 times [2021-03-26 17:46:06,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:06,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290888238] [2021-03-26 17:46:06,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:06,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:46:06,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:06,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:06,651 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:06,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:06,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290888238] [2021-03-26 17:46:06,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:06,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 17:46:06,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061461072] [2021-03-26 17:46:06,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 17:46:06,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:06,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 17:46:06,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 17:46:06,662 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2021-03-26 17:46:06,662 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 275 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:06,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2021-03-26 17:46:06,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:06,738 INFO L129 PetriNetUnfolder]: 27/67 cut-off events. [2021-03-26 17:46:06,738 INFO L130 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2021-03-26 17:46:06,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 67 events. 27/67 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 198 event pairs, 0 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 256. Up to 27 conditions per place. [2021-03-26 17:46:06,739 INFO L132 encePairwiseOnDemand]: 27/35 looper letters, 15 selfloop transitions, 17 changer transitions 1/42 dead transitions. [2021-03-26 17:46:06,739 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 42 transitions, 368 flow [2021-03-26 17:46:06,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 17:46:06,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 17:46:06,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2021-03-26 17:46:06,741 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49047619047619045 [2021-03-26 17:46:06,741 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 103 transitions. [2021-03-26 17:46:06,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 103 transitions. [2021-03-26 17:46:06,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:06,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 103 transitions. [2021-03-26 17:46:06,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,743 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,743 INFO L185 Difference]: Start difference. First operand has 38 places, 38 transitions, 275 flow. Second operand 6 states and 103 transitions. [2021-03-26 17:46:06,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 42 transitions, 368 flow [2021-03-26 17:46:06,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 42 transitions, 353 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-26 17:46:06,746 INFO L241 Difference]: Finished difference. Result has 44 places, 40 transitions, 323 flow [2021-03-26 17:46:06,746 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=323, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2021-03-26 17:46:06,748 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 27 predicate places. [2021-03-26 17:46:06,748 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:06,748 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 40 transitions, 323 flow [2021-03-26 17:46:06,748 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 40 transitions, 323 flow [2021-03-26 17:46:06,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 40 transitions, 323 flow [2021-03-26 17:46:06,755 INFO L129 PetriNetUnfolder]: 26/63 cut-off events. [2021-03-26 17:46:06,755 INFO L130 PetriNetUnfolder]: For 146/148 co-relation queries the response was YES. [2021-03-26 17:46:06,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 63 events. 26/63 cut-off events. For 146/148 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 180 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 246. Up to 18 conditions per place. [2021-03-26 17:46:06,757 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-26 17:46:06,760 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:06,760 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:06,760 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 17:46:06,762 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 323 flow [2021-03-26 17:46:06,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,762 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:06,762 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:06,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 17:46:06,763 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:06,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:06,763 INFO L82 PathProgramCache]: Analyzing trace with hash -2052433563, now seen corresponding path program 1 times [2021-03-26 17:46:06,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:06,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400782876] [2021-03-26 17:46:06,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:06,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:06,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:06,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:06,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:06,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400782876] [2021-03-26 17:46:06,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:06,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 17:46:06,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050031683] [2021-03-26 17:46:06,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 17:46:06,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:06,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 17:46:06,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 17:46:06,792 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 35 [2021-03-26 17:46:06,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:06,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 35 [2021-03-26 17:46:06,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:06,829 INFO L129 PetriNetUnfolder]: 26/69 cut-off events. [2021-03-26 17:46:06,829 INFO L130 PetriNetUnfolder]: For 178/184 co-relation queries the response was YES. [2021-03-26 17:46:06,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 69 events. 26/69 cut-off events. For 178/184 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 209 event pairs, 0 based on Foata normal form. 6/75 useless extension candidates. Maximal degree in co-relation 298. Up to 23 conditions per place. [2021-03-26 17:46:06,831 INFO L132 encePairwiseOnDemand]: 30/35 looper letters, 14 selfloop transitions, 11 changer transitions 0/42 dead transitions. [2021-03-26 17:46:06,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 388 flow [2021-03-26 17:46:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 17:46:06,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 17:46:06,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2021-03-26 17:46:06,832 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-26 17:46:06,832 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 87 transitions. [2021-03-26 17:46:06,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 87 transitions. [2021-03-26 17:46:06,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:06,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 87 transitions. [2021-03-26 17:46:06,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,834 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,834 INFO L185 Difference]: Start difference. First operand has 43 places, 40 transitions, 323 flow. Second operand 4 states and 87 transitions. [2021-03-26 17:46:06,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 388 flow [2021-03-26 17:46:06,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 42 transitions, 350 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-26 17:46:06,837 INFO L241 Difference]: Finished difference. Result has 43 places, 42 transitions, 329 flow [2021-03-26 17:46:06,837 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=329, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2021-03-26 17:46:06,838 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 26 predicate places. [2021-03-26 17:46:06,838 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:06,838 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 42 transitions, 329 flow [2021-03-26 17:46:06,838 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 42 transitions, 329 flow [2021-03-26 17:46:06,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 42 transitions, 329 flow [2021-03-26 17:46:06,844 INFO L129 PetriNetUnfolder]: 27/69 cut-off events. [2021-03-26 17:46:06,844 INFO L130 PetriNetUnfolder]: For 138/138 co-relation queries the response was YES. [2021-03-26 17:46:06,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 69 events. 27/69 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 208 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 240. Up to 19 conditions per place. [2021-03-26 17:46:06,846 INFO L142 LiptonReduction]: Number of co-enabled transitions 40 [2021-03-26 17:46:06,849 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:06,849 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:06,849 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 17:46:06,850 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 329 flow [2021-03-26 17:46:06,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,850 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:06,850 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:06,850 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 17:46:06,850 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:06,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:06,851 INFO L82 PathProgramCache]: Analyzing trace with hash -2029315747, now seen corresponding path program 1 times [2021-03-26 17:46:06,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:06,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950003810] [2021-03-26 17:46:06,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:06,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:06,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:06,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:06,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:06,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:06,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950003810] [2021-03-26 17:46:06,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:06,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 17:46:06,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570577967] [2021-03-26 17:46:06,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 17:46:06,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:06,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 17:46:06,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 17:46:06,919 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 35 [2021-03-26 17:46:06,919 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 329 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:06,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 35 [2021-03-26 17:46:06,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:06,956 INFO L129 PetriNetUnfolder]: 25/64 cut-off events. [2021-03-26 17:46:06,956 INFO L130 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2021-03-26 17:46:06,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 64 events. 25/64 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 179 event pairs, 0 based on Foata normal form. 1/65 useless extension candidates. Maximal degree in co-relation 258. Up to 19 conditions per place. [2021-03-26 17:46:06,957 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 13 selfloop transitions, 11 changer transitions 1/42 dead transitions. [2021-03-26 17:46:06,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 381 flow [2021-03-26 17:46:06,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 17:46:06,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 17:46:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2021-03-26 17:46:06,958 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-26 17:46:06,958 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 85 transitions. [2021-03-26 17:46:06,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 85 transitions. [2021-03-26 17:46:06,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:06,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 85 transitions. [2021-03-26 17:46:06,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,959 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,959 INFO L185 Difference]: Start difference. First operand has 43 places, 42 transitions, 329 flow. Second operand 4 states and 85 transitions. [2021-03-26 17:46:06,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 381 flow [2021-03-26 17:46:06,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 370 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 17:46:06,962 INFO L241 Difference]: Finished difference. Result has 45 places, 40 transitions, 320 flow [2021-03-26 17:46:06,962 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=320, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2021-03-26 17:46:06,962 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 28 predicate places. [2021-03-26 17:46:06,962 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:06,963 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 40 transitions, 320 flow [2021-03-26 17:46:06,963 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 40 transitions, 320 flow [2021-03-26 17:46:06,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 40 transitions, 320 flow [2021-03-26 17:46:06,968 INFO L129 PetriNetUnfolder]: 25/62 cut-off events. [2021-03-26 17:46:06,968 INFO L130 PetriNetUnfolder]: For 138/140 co-relation queries the response was YES. [2021-03-26 17:46:06,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 62 events. 25/62 cut-off events. For 138/140 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 173 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 226. Up to 18 conditions per place. [2021-03-26 17:46:06,969 INFO L142 LiptonReduction]: Number of co-enabled transitions 40 [2021-03-26 17:46:06,971 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:06,971 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:06,971 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 17:46:06,972 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 320 flow [2021-03-26 17:46:06,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:06,972 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:06,972 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:06,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 17:46:06,972 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:06,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:06,973 INFO L82 PathProgramCache]: Analyzing trace with hash -966014201, now seen corresponding path program 1 times [2021-03-26 17:46:06,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:06,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844276933] [2021-03-26 17:46:06,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:06,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:06,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:07,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:07,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:07,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844276933] [2021-03-26 17:46:07,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:07,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 17:46:07,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939090483] [2021-03-26 17:46:07,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 17:46:07,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:07,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 17:46:07,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 17:46:07,011 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 35 [2021-03-26 17:46:07,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:07,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 35 [2021-03-26 17:46:07,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:07,040 INFO L129 PetriNetUnfolder]: 30/86 cut-off events. [2021-03-26 17:46:07,040 INFO L130 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2021-03-26 17:46:07,041 INFO L84 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 86 events. 30/86 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 298 event pairs, 1 based on Foata normal form. 2/88 useless extension candidates. Maximal degree in co-relation 339. Up to 30 conditions per place. [2021-03-26 17:46:07,041 INFO L132 encePairwiseOnDemand]: 31/35 looper letters, 18 selfloop transitions, 11 changer transitions 0/45 dead transitions. [2021-03-26 17:46:07,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 45 transitions, 409 flow [2021-03-26 17:46:07,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 17:46:07,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 17:46:07,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2021-03-26 17:46:07,043 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2021-03-26 17:46:07,043 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 86 transitions. [2021-03-26 17:46:07,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 86 transitions. [2021-03-26 17:46:07,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:07,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 86 transitions. [2021-03-26 17:46:07,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,045 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,045 INFO L185 Difference]: Start difference. First operand has 45 places, 40 transitions, 320 flow. Second operand 4 states and 86 transitions. [2021-03-26 17:46:07,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 45 transitions, 409 flow [2021-03-26 17:46:07,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 45 transitions, 388 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 17:46:07,047 INFO L241 Difference]: Finished difference. Result has 47 places, 43 transitions, 350 flow [2021-03-26 17:46:07,047 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=350, PETRI_PLACES=47, PETRI_TRANSITIONS=43} [2021-03-26 17:46:07,048 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 30 predicate places. [2021-03-26 17:46:07,048 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:07,048 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 43 transitions, 350 flow [2021-03-26 17:46:07,048 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 43 transitions, 350 flow [2021-03-26 17:46:07,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 43 transitions, 350 flow [2021-03-26 17:46:07,054 INFO L129 PetriNetUnfolder]: 29/79 cut-off events. [2021-03-26 17:46:07,054 INFO L130 PetriNetUnfolder]: For 152/154 co-relation queries the response was YES. [2021-03-26 17:46:07,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 79 events. 29/79 cut-off events. For 152/154 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 275 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 279. Up to 21 conditions per place. [2021-03-26 17:46:07,055 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-26 17:46:07,058 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:07,058 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:07,058 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 17:46:07,059 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 43 transitions, 350 flow [2021-03-26 17:46:07,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,059 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:07,059 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:07,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 17:46:07,059 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:07,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:07,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1058448947, now seen corresponding path program 1 times [2021-03-26 17:46:07,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:07,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303691820] [2021-03-26 17:46:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:07,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:07,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:07,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:07,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303691820] [2021-03-26 17:46:07,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:07,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 17:46:07,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330037266] [2021-03-26 17:46:07,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 17:46:07,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:07,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 17:46:07,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 17:46:07,076 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 35 [2021-03-26 17:46:07,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 43 transitions, 350 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:07,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 35 [2021-03-26 17:46:07,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:07,101 INFO L129 PetriNetUnfolder]: 28/82 cut-off events. [2021-03-26 17:46:07,101 INFO L130 PetriNetUnfolder]: For 181/181 co-relation queries the response was YES. [2021-03-26 17:46:07,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 82 events. 28/82 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 277 event pairs, 1 based on Foata normal form. 1/83 useless extension candidates. Maximal degree in co-relation 346. Up to 22 conditions per place. [2021-03-26 17:46:07,102 INFO L132 encePairwiseOnDemand]: 30/35 looper letters, 15 selfloop transitions, 10 changer transitions 1/42 dead transitions. [2021-03-26 17:46:07,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 42 transitions, 398 flow [2021-03-26 17:46:07,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 17:46:07,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 17:46:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2021-03-26 17:46:07,103 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-03-26 17:46:07,103 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 84 transitions. [2021-03-26 17:46:07,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 84 transitions. [2021-03-26 17:46:07,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:07,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 84 transitions. [2021-03-26 17:46:07,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,105 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,105 INFO L185 Difference]: Start difference. First operand has 47 places, 43 transitions, 350 flow. Second operand 4 states and 84 transitions. [2021-03-26 17:46:07,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 42 transitions, 398 flow [2021-03-26 17:46:07,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 42 transitions, 391 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-03-26 17:46:07,107 INFO L241 Difference]: Finished difference. Result has 49 places, 40 transitions, 333 flow [2021-03-26 17:46:07,107 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=333, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2021-03-26 17:46:07,107 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 32 predicate places. [2021-03-26 17:46:07,107 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:07,108 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 40 transitions, 333 flow [2021-03-26 17:46:07,108 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 40 transitions, 333 flow [2021-03-26 17:46:07,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 40 transitions, 333 flow [2021-03-26 17:46:07,113 INFO L129 PetriNetUnfolder]: 27/75 cut-off events. [2021-03-26 17:46:07,113 INFO L130 PetriNetUnfolder]: For 168/170 co-relation queries the response was YES. [2021-03-26 17:46:07,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 75 events. 27/75 cut-off events. For 168/170 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 245 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 286. Up to 20 conditions per place. [2021-03-26 17:46:07,114 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-26 17:46:07,116 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:07,116 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:07,117 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 17:46:07,117 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 333 flow [2021-03-26 17:46:07,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,117 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:07,117 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:07,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 17:46:07,118 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:07,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:07,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1796259580, now seen corresponding path program 4 times [2021-03-26 17:46:07,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:07,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418747920] [2021-03-26 17:46:07,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:07,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:46:07,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:07,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:07,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:07,163 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:07,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:07,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:07,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418747920] [2021-03-26 17:46:07,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:07,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:07,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859304446] [2021-03-26 17:46:07,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:07,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:07,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:07,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:46:07,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 35 [2021-03-26 17:46:07,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 333 flow. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:07,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 35 [2021-03-26 17:46:07,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:07,251 INFO L129 PetriNetUnfolder]: 34/91 cut-off events. [2021-03-26 17:46:07,251 INFO L130 PetriNetUnfolder]: For 165/165 co-relation queries the response was YES. [2021-03-26 17:46:07,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 91 events. 34/91 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 307 event pairs, 2 based on Foata normal form. 1/92 useless extension candidates. Maximal degree in co-relation 410. Up to 43 conditions per place. [2021-03-26 17:46:07,252 INFO L132 encePairwiseOnDemand]: 27/35 looper letters, 26 selfloop transitions, 16 changer transitions 1/45 dead transitions. [2021-03-26 17:46:07,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 45 transitions, 445 flow [2021-03-26 17:46:07,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 17:46:07,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 17:46:07,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 85 transitions. [2021-03-26 17:46:07,254 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3469387755102041 [2021-03-26 17:46:07,254 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 85 transitions. [2021-03-26 17:46:07,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 85 transitions. [2021-03-26 17:46:07,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:07,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 85 transitions. [2021-03-26 17:46:07,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,255 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,255 INFO L185 Difference]: Start difference. First operand has 47 places, 40 transitions, 333 flow. Second operand 7 states and 85 transitions. [2021-03-26 17:46:07,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 45 transitions, 445 flow [2021-03-26 17:46:07,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 45 transitions, 429 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 17:46:07,258 INFO L241 Difference]: Finished difference. Result has 52 places, 41 transitions, 362 flow [2021-03-26 17:46:07,258 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=362, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2021-03-26 17:46:07,258 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 35 predicate places. [2021-03-26 17:46:07,259 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:07,259 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 41 transitions, 362 flow [2021-03-26 17:46:07,259 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 41 transitions, 362 flow [2021-03-26 17:46:07,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 362 flow [2021-03-26 17:46:07,265 INFO L129 PetriNetUnfolder]: 28/78 cut-off events. [2021-03-26 17:46:07,265 INFO L130 PetriNetUnfolder]: For 162/164 co-relation queries the response was YES. [2021-03-26 17:46:07,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 78 events. 28/78 cut-off events. For 162/164 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 260 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 316. Up to 21 conditions per place. [2021-03-26 17:46:07,266 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-26 17:46:07,268 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:07,268 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:07,269 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 17:46:07,269 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 362 flow [2021-03-26 17:46:07,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,269 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:07,269 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:07,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 17:46:07,269 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:07,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:07,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1159030090, now seen corresponding path program 5 times [2021-03-26 17:46:07,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:07,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917188756] [2021-03-26 17:46:07,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:07,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:46:07,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:07,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:07,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:07,318 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:07,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:07,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:07,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917188756] [2021-03-26 17:46:07,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:07,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:07,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136380475] [2021-03-26 17:46:07,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:07,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:07,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:07,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:46:07,329 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 35 [2021-03-26 17:46:07,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 362 flow. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:07,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 35 [2021-03-26 17:46:07,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:07,405 INFO L129 PetriNetUnfolder]: 34/87 cut-off events. [2021-03-26 17:46:07,405 INFO L130 PetriNetUnfolder]: For 174/174 co-relation queries the response was YES. [2021-03-26 17:46:07,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 87 events. 34/87 cut-off events. For 174/174 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 280 event pairs, 2 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 428. Up to 35 conditions per place. [2021-03-26 17:46:07,406 INFO L132 encePairwiseOnDemand]: 27/35 looper letters, 29 selfloop transitions, 17 changer transitions 1/49 dead transitions. [2021-03-26 17:46:07,406 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 49 transitions, 504 flow [2021-03-26 17:46:07,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 17:46:07,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 17:46:07,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 86 transitions. [2021-03-26 17:46:07,407 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3510204081632653 [2021-03-26 17:46:07,407 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 86 transitions. [2021-03-26 17:46:07,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 86 transitions. [2021-03-26 17:46:07,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:07,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 86 transitions. [2021-03-26 17:46:07,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,409 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,409 INFO L185 Difference]: Start difference. First operand has 51 places, 41 transitions, 362 flow. Second operand 7 states and 86 transitions. [2021-03-26 17:46:07,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 49 transitions, 504 flow [2021-03-26 17:46:07,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 470 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-26 17:46:07,412 INFO L241 Difference]: Finished difference. Result has 55 places, 44 transitions, 400 flow [2021-03-26 17:46:07,412 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=400, PETRI_PLACES=55, PETRI_TRANSITIONS=44} [2021-03-26 17:46:07,412 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 38 predicate places. [2021-03-26 17:46:07,412 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:07,413 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 44 transitions, 400 flow [2021-03-26 17:46:07,413 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 44 transitions, 400 flow [2021-03-26 17:46:07,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 44 transitions, 400 flow [2021-03-26 17:46:07,421 INFO L129 PetriNetUnfolder]: 26/72 cut-off events. [2021-03-26 17:46:07,421 INFO L130 PetriNetUnfolder]: For 169/171 co-relation queries the response was YES. [2021-03-26 17:46:07,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 72 events. 26/72 cut-off events. For 169/171 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 226 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 311. Up to 19 conditions per place. [2021-03-26 17:46:07,422 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-26 17:46:07,446 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:07,446 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 17:46:07,446 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-26 17:46:07,449 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 392 flow [2021-03-26 17:46:07,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,450 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:07,450 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:07,450 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 17:46:07,450 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:07,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:07,451 INFO L82 PathProgramCache]: Analyzing trace with hash 886383016, now seen corresponding path program 1 times [2021-03-26 17:46:07,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:07,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957559983] [2021-03-26 17:46:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:07,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:07,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:07,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957559983] [2021-03-26 17:46:07,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:07,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:07,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476428861] [2021-03-26 17:46:07,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 17:46:07,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:07,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 17:46:07,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 17:46:07,500 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 36 [2021-03-26 17:46:07,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 392 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:07,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 36 [2021-03-26 17:46:07,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:07,548 INFO L129 PetriNetUnfolder]: 36/87 cut-off events. [2021-03-26 17:46:07,549 INFO L130 PetriNetUnfolder]: For 216/216 co-relation queries the response was YES. [2021-03-26 17:46:07,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 87 events. 36/87 cut-off events. For 216/216 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 273 event pairs, 0 based on Foata normal form. 2/89 useless extension candidates. Maximal degree in co-relation 443. Up to 41 conditions per place. [2021-03-26 17:46:07,550 INFO L132 encePairwiseOnDemand]: 28/36 looper letters, 40 selfloop transitions, 14 changer transitions 0/57 dead transitions. [2021-03-26 17:46:07,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 57 transitions, 614 flow [2021-03-26 17:46:07,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 17:46:07,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 17:46:07,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2021-03-26 17:46:07,551 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4222222222222222 [2021-03-26 17:46:07,551 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 76 transitions. [2021-03-26 17:46:07,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 76 transitions. [2021-03-26 17:46:07,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:07,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 76 transitions. [2021-03-26 17:46:07,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,552 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,552 INFO L185 Difference]: Start difference. First operand has 53 places, 43 transitions, 392 flow. Second operand 5 states and 76 transitions. [2021-03-26 17:46:07,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 57 transitions, 614 flow [2021-03-26 17:46:07,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 57 transitions, 556 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-26 17:46:07,555 INFO L241 Difference]: Finished difference. Result has 54 places, 46 transitions, 426 flow [2021-03-26 17:46:07,555 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=426, PETRI_PLACES=54, PETRI_TRANSITIONS=46} [2021-03-26 17:46:07,555 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 37 predicate places. [2021-03-26 17:46:07,555 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:07,555 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 46 transitions, 426 flow [2021-03-26 17:46:07,555 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 46 transitions, 426 flow [2021-03-26 17:46:07,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 46 transitions, 426 flow [2021-03-26 17:46:07,561 INFO L129 PetriNetUnfolder]: 28/76 cut-off events. [2021-03-26 17:46:07,561 INFO L130 PetriNetUnfolder]: For 223/225 co-relation queries the response was YES. [2021-03-26 17:46:07,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 76 events. 28/76 cut-off events. For 223/225 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 248 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 305. Up to 21 conditions per place. [2021-03-26 17:46:07,562 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-26 17:46:07,565 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:07,565 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:07,565 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 17:46:07,565 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 426 flow [2021-03-26 17:46:07,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,565 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:07,566 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:07,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 17:46:07,566 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:07,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:07,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1131324460, now seen corresponding path program 1 times [2021-03-26 17:46:07,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:07,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007528610] [2021-03-26 17:46:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:07,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:07,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:07,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:07,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007528610] [2021-03-26 17:46:07,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:07,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 17:46:07,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846685749] [2021-03-26 17:46:07,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 17:46:07,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:07,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 17:46:07,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 17:46:07,584 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 36 [2021-03-26 17:46:07,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 46 transitions, 426 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:07,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 36 [2021-03-26 17:46:07,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:07,612 INFO L129 PetriNetUnfolder]: 29/80 cut-off events. [2021-03-26 17:46:07,612 INFO L130 PetriNetUnfolder]: For 282/282 co-relation queries the response was YES. [2021-03-26 17:46:07,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 80 events. 29/80 cut-off events. For 282/282 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 263 event pairs, 1 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 370. Up to 29 conditions per place. [2021-03-26 17:46:07,613 INFO L132 encePairwiseOnDemand]: 32/36 looper letters, 13 selfloop transitions, 15 changer transitions 0/46 dead transitions. [2021-03-26 17:46:07,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 46 transitions, 484 flow [2021-03-26 17:46:07,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 17:46:07,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 17:46:07,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2021-03-26 17:46:07,614 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2021-03-26 17:46:07,614 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 84 transitions. [2021-03-26 17:46:07,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 84 transitions. [2021-03-26 17:46:07,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:07,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 84 transitions. [2021-03-26 17:46:07,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,615 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,615 INFO L185 Difference]: Start difference. First operand has 54 places, 46 transitions, 426 flow. Second operand 4 states and 84 transitions. [2021-03-26 17:46:07,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 46 transitions, 484 flow [2021-03-26 17:46:07,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 46 transitions, 461 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-26 17:46:07,620 INFO L241 Difference]: Finished difference. Result has 55 places, 46 transitions, 452 flow [2021-03-26 17:46:07,620 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=452, PETRI_PLACES=55, PETRI_TRANSITIONS=46} [2021-03-26 17:46:07,620 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 38 predicate places. [2021-03-26 17:46:07,620 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:07,620 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 46 transitions, 452 flow [2021-03-26 17:46:07,620 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 46 transitions, 452 flow [2021-03-26 17:46:07,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 46 transitions, 452 flow [2021-03-26 17:46:07,626 INFO L129 PetriNetUnfolder]: 26/72 cut-off events. [2021-03-26 17:46:07,626 INFO L130 PetriNetUnfolder]: For 242/244 co-relation queries the response was YES. [2021-03-26 17:46:07,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 72 events. 26/72 cut-off events. For 242/244 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 234 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 322. Up to 21 conditions per place. [2021-03-26 17:46:07,627 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-26 17:46:07,630 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:07,630 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:07,630 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 17:46:07,631 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 46 transitions, 452 flow [2021-03-26 17:46:07,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,631 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:07,631 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:07,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 17:46:07,632 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:07,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:07,632 INFO L82 PathProgramCache]: Analyzing trace with hash 949771195, now seen corresponding path program 1 times [2021-03-26 17:46:07,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:07,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136365211] [2021-03-26 17:46:07,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:07,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:07,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:07,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136365211] [2021-03-26 17:46:07,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:07,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:07,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79986549] [2021-03-26 17:46:07,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 17:46:07,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:07,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 17:46:07,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 17:46:07,657 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 36 [2021-03-26 17:46:07,657 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 46 transitions, 452 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:07,657 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 36 [2021-03-26 17:46:07,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:07,703 INFO L129 PetriNetUnfolder]: 37/90 cut-off events. [2021-03-26 17:46:07,703 INFO L130 PetriNetUnfolder]: For 277/277 co-relation queries the response was YES. [2021-03-26 17:46:07,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 90 events. 37/90 cut-off events. For 277/277 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 273 event pairs, 4 based on Foata normal form. 2/92 useless extension candidates. Maximal degree in co-relation 450. Up to 37 conditions per place. [2021-03-26 17:46:07,704 INFO L132 encePairwiseOnDemand]: 29/36 looper letters, 37 selfloop transitions, 16 changer transitions 1/57 dead transitions. [2021-03-26 17:46:07,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 57 transitions, 660 flow [2021-03-26 17:46:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 17:46:07,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 17:46:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2021-03-26 17:46:07,705 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40555555555555556 [2021-03-26 17:46:07,705 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 73 transitions. [2021-03-26 17:46:07,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 73 transitions. [2021-03-26 17:46:07,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:07,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 73 transitions. [2021-03-26 17:46:07,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,706 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,706 INFO L185 Difference]: Start difference. First operand has 55 places, 46 transitions, 452 flow. Second operand 5 states and 73 transitions. [2021-03-26 17:46:07,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 57 transitions, 660 flow [2021-03-26 17:46:07,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 57 transitions, 642 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-03-26 17:46:07,710 INFO L241 Difference]: Finished difference. Result has 60 places, 49 transitions, 525 flow [2021-03-26 17:46:07,710 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=525, PETRI_PLACES=60, PETRI_TRANSITIONS=49} [2021-03-26 17:46:07,711 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 43 predicate places. [2021-03-26 17:46:07,711 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:07,711 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 49 transitions, 525 flow [2021-03-26 17:46:07,711 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 49 transitions, 525 flow [2021-03-26 17:46:07,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 49 transitions, 525 flow [2021-03-26 17:46:07,719 INFO L129 PetriNetUnfolder]: 28/79 cut-off events. [2021-03-26 17:46:07,719 INFO L130 PetriNetUnfolder]: For 344/344 co-relation queries the response was YES. [2021-03-26 17:46:07,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 79 events. 28/79 cut-off events. For 344/344 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 272 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 357. Up to 22 conditions per place. [2021-03-26 17:46:07,720 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-26 17:46:07,723 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:07,723 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:07,723 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 17:46:07,724 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 49 transitions, 525 flow [2021-03-26 17:46:07,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,724 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:07,724 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:07,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 17:46:07,724 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:07,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:07,725 INFO L82 PathProgramCache]: Analyzing trace with hash -830176752, now seen corresponding path program 2 times [2021-03-26 17:46:07,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:07,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610121652] [2021-03-26 17:46:07,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:07,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:07,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:07,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610121652] [2021-03-26 17:46:07,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:07,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:07,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848801504] [2021-03-26 17:46:07,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 17:46:07,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:07,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 17:46:07,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 17:46:07,756 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 36 [2021-03-26 17:46:07,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 525 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:07,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 36 [2021-03-26 17:46:07,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:07,809 INFO L129 PetriNetUnfolder]: 37/92 cut-off events. [2021-03-26 17:46:07,810 INFO L130 PetriNetUnfolder]: For 403/403 co-relation queries the response was YES. [2021-03-26 17:46:07,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 92 events. 37/92 cut-off events. For 403/403 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 292 event pairs, 0 based on Foata normal form. 2/94 useless extension candidates. Maximal degree in co-relation 467. Up to 59 conditions per place. [2021-03-26 17:46:07,811 INFO L132 encePairwiseOnDemand]: 30/36 looper letters, 37 selfloop transitions, 17 changer transitions 1/58 dead transitions. [2021-03-26 17:46:07,811 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 58 transitions, 708 flow [2021-03-26 17:46:07,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 17:46:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 17:46:07,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2021-03-26 17:46:07,811 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4 [2021-03-26 17:46:07,812 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 72 transitions. [2021-03-26 17:46:07,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 72 transitions. [2021-03-26 17:46:07,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:07,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 72 transitions. [2021-03-26 17:46:07,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,813 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,813 INFO L185 Difference]: Start difference. First operand has 60 places, 49 transitions, 525 flow. Second operand 5 states and 72 transitions. [2021-03-26 17:46:07,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 58 transitions, 708 flow [2021-03-26 17:46:07,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 685 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 17:46:07,816 INFO L241 Difference]: Finished difference. Result has 64 places, 51 transitions, 571 flow [2021-03-26 17:46:07,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=571, PETRI_PLACES=64, PETRI_TRANSITIONS=51} [2021-03-26 17:46:07,817 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 47 predicate places. [2021-03-26 17:46:07,817 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:07,817 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 51 transitions, 571 flow [2021-03-26 17:46:07,817 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 51 transitions, 571 flow [2021-03-26 17:46:07,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 51 transitions, 571 flow [2021-03-26 17:46:07,824 INFO L129 PetriNetUnfolder]: 30/82 cut-off events. [2021-03-26 17:46:07,824 INFO L130 PetriNetUnfolder]: For 378/378 co-relation queries the response was YES. [2021-03-26 17:46:07,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 82 events. 30/82 cut-off events. For 378/378 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 274 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 381. Up to 24 conditions per place. [2021-03-26 17:46:07,825 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-26 17:46:07,829 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:07,829 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:07,829 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 17:46:07,829 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 51 transitions, 571 flow [2021-03-26 17:46:07,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:07,830 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:07,830 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:07,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 17:46:07,830 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:07,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:07,830 INFO L82 PathProgramCache]: Analyzing trace with hash 628223285, now seen corresponding path program 1 times [2021-03-26 17:46:07,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:07,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189637978] [2021-03-26 17:46:07,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:07,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:07,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:07,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:46:07,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:07,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:07,880 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:07,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:07,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189637978] [2021-03-26 17:46:07,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122329436] [2021-03-26 17:46:07,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:07,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-26 17:46:07,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:07,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:07,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:07,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:07,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:07,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:07,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:07,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:07,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:07,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:07,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:07,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:07,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:07,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:07,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:07,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:07,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:07,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:07,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:08,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:08,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:08,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:08,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:08,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:08,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:46:08,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 17:46:08,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:08,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:46:08,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 17:46:08,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:08,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:08,048 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 17:46:08,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:46:08,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:08,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:08,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:08,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,074 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:08,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:08,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:08,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:08,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:08,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:08,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:46:08,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 17:46:08,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084513600] [2021-03-26 17:46:08,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 17:46:08,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:08,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 17:46:08,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-26 17:46:08,093 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 36 [2021-03-26 17:46:08,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 51 transitions, 571 flow. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:08,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:08,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 36 [2021-03-26 17:46:08,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:08,234 INFO L129 PetriNetUnfolder]: 46/109 cut-off events. [2021-03-26 17:46:08,234 INFO L130 PetriNetUnfolder]: For 430/430 co-relation queries the response was YES. [2021-03-26 17:46:08,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 637 conditions, 109 events. 46/109 cut-off events. For 430/430 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 365 event pairs, 0 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 567. Up to 41 conditions per place. [2021-03-26 17:46:08,235 INFO L132 encePairwiseOnDemand]: 26/36 looper letters, 35 selfloop transitions, 29 changer transitions 7/73 dead transitions. [2021-03-26 17:46:08,235 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 73 transitions, 865 flow [2021-03-26 17:46:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 17:46:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 17:46:08,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 112 transitions. [2021-03-26 17:46:08,237 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.345679012345679 [2021-03-26 17:46:08,237 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 112 transitions. [2021-03-26 17:46:08,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 112 transitions. [2021-03-26 17:46:08,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:08,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 112 transitions. [2021-03-26 17:46:08,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:08,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 36.0) internal successors, (360), 10 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:08,238 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 36.0) internal successors, (360), 10 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:08,238 INFO L185 Difference]: Start difference. First operand has 64 places, 51 transitions, 571 flow. Second operand 9 states and 112 transitions. [2021-03-26 17:46:08,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 73 transitions, 865 flow [2021-03-26 17:46:08,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 73 transitions, 835 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 17:46:08,243 INFO L241 Difference]: Finished difference. Result has 73 places, 58 transitions, 678 flow [2021-03-26 17:46:08,244 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=678, PETRI_PLACES=73, PETRI_TRANSITIONS=58} [2021-03-26 17:46:08,244 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 56 predicate places. [2021-03-26 17:46:08,244 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:08,244 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 58 transitions, 678 flow [2021-03-26 17:46:08,244 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 58 transitions, 678 flow [2021-03-26 17:46:08,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 58 transitions, 678 flow [2021-03-26 17:46:08,258 INFO L129 PetriNetUnfolder]: 33/84 cut-off events. [2021-03-26 17:46:08,258 INFO L130 PetriNetUnfolder]: For 377/377 co-relation queries the response was YES. [2021-03-26 17:46:08,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 84 events. 33/84 cut-off events. For 377/377 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 279 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 458. Up to 26 conditions per place. [2021-03-26 17:46:08,260 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-26 17:46:08,330 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 17:46:08,330 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 17:46:08,330 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 86 [2021-03-26 17:46:08,331 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 58 transitions, 694 flow [2021-03-26 17:46:08,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:08,331 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:08,332 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:08,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-03-26 17:46:08,553 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:08,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:08,553 INFO L82 PathProgramCache]: Analyzing trace with hash -664949139, now seen corresponding path program 2 times [2021-03-26 17:46:08,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:08,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585831424] [2021-03-26 17:46:08,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:08,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:08,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:08,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:08,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:08,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:08,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:08,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585831424] [2021-03-26 17:46:08,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:08,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:08,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060416281] [2021-03-26 17:46:08,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 17:46:08,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:08,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 17:46:08,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 17:46:08,589 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2021-03-26 17:46:08,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 58 transitions, 694 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:08,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:08,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2021-03-26 17:46:08,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:08,682 INFO L129 PetriNetUnfolder]: 42/104 cut-off events. [2021-03-26 17:46:08,682 INFO L130 PetriNetUnfolder]: For 478/478 co-relation queries the response was YES. [2021-03-26 17:46:08,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 104 events. 42/104 cut-off events. For 478/478 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 346 event pairs, 2 based on Foata normal form. 1/105 useless extension candidates. Maximal degree in co-relation 630. Up to 41 conditions per place. [2021-03-26 17:46:08,683 INFO L132 encePairwiseOnDemand]: 29/38 looper letters, 34 selfloop transitions, 28 changer transitions 1/66 dead transitions. [2021-03-26 17:46:08,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 66 transitions, 884 flow [2021-03-26 17:46:08,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 17:46:08,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 17:46:08,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 112 transitions. [2021-03-26 17:46:08,685 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3684210526315789 [2021-03-26 17:46:08,685 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 112 transitions. [2021-03-26 17:46:08,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 112 transitions. [2021-03-26 17:46:08,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:08,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 112 transitions. [2021-03-26 17:46:08,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:08,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 38.0) internal successors, (342), 9 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:08,686 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 38.0) internal successors, (342), 9 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:08,687 INFO L185 Difference]: Start difference. First operand has 72 places, 58 transitions, 694 flow. Second operand 8 states and 112 transitions. [2021-03-26 17:46:08,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 66 transitions, 884 flow [2021-03-26 17:46:08,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 66 transitions, 846 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-03-26 17:46:08,694 INFO L241 Difference]: Finished difference. Result has 78 places, 58 transitions, 719 flow [2021-03-26 17:46:08,694 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=719, PETRI_PLACES=78, PETRI_TRANSITIONS=58} [2021-03-26 17:46:08,695 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 61 predicate places. [2021-03-26 17:46:08,695 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:08,695 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 58 transitions, 719 flow [2021-03-26 17:46:08,695 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 58 transitions, 719 flow [2021-03-26 17:46:08,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 58 transitions, 719 flow [2021-03-26 17:46:08,705 INFO L129 PetriNetUnfolder]: 34/88 cut-off events. [2021-03-26 17:46:08,706 INFO L130 PetriNetUnfolder]: For 489/489 co-relation queries the response was YES. [2021-03-26 17:46:08,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 520 conditions, 88 events. 34/88 cut-off events. For 489/489 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 284 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 477. Up to 30 conditions per place. [2021-03-26 17:46:08,707 INFO L142 LiptonReduction]: Number of co-enabled transitions 34 [2021-03-26 17:46:08,712 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:08,712 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:08,712 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-26 17:46:08,712 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 58 transitions, 719 flow [2021-03-26 17:46:08,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:08,713 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:08,713 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:08,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 17:46:08,713 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:08,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:08,713 INFO L82 PathProgramCache]: Analyzing trace with hash -821865063, now seen corresponding path program 1 times [2021-03-26 17:46:08,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:08,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343647588] [2021-03-26 17:46:08,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:08,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:08,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:08,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:08,782 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:08,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:08,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343647588] [2021-03-26 17:46:08,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048755635] [2021-03-26 17:46:08,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:08,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-26 17:46:08,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:08,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:08,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:08,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:08,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:08,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:08,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:08,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 17:46:08,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:08,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:08,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:08,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:08,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:08,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:08,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:08,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:08,893 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.4 percent of original size [2021-03-26 17:46:08,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:08,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:08,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 17:46:08,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:08,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:08,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 17:46:08,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:08,923 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:08,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:08,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:08,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:08,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:08,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:08,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:08,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:08,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:46:08,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 17:46:08,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958655917] [2021-03-26 17:46:08,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 17:46:08,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:08,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 17:46:08,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-26 17:46:08,951 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2021-03-26 17:46:08,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 58 transitions, 719 flow. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:08,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:08,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2021-03-26 17:46:08,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:09,064 INFO L129 PetriNetUnfolder]: 42/110 cut-off events. [2021-03-26 17:46:09,064 INFO L130 PetriNetUnfolder]: For 570/570 co-relation queries the response was YES. [2021-03-26 17:46:09,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 697 conditions, 110 events. 42/110 cut-off events. For 570/570 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 387 event pairs, 0 based on Foata normal form. 2/112 useless extension candidates. Maximal degree in co-relation 649. Up to 47 conditions per place. [2021-03-26 17:46:09,065 INFO L132 encePairwiseOnDemand]: 27/38 looper letters, 36 selfloop transitions, 19 changer transitions 9/66 dead transitions. [2021-03-26 17:46:09,065 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 66 transitions, 901 flow [2021-03-26 17:46:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 17:46:09,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 17:46:09,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 96 transitions. [2021-03-26 17:46:09,066 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3157894736842105 [2021-03-26 17:46:09,066 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 96 transitions. [2021-03-26 17:46:09,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 96 transitions. [2021-03-26 17:46:09,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:09,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 96 transitions. [2021-03-26 17:46:09,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:09,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 38.0) internal successors, (342), 9 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:09,069 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 38.0) internal successors, (342), 9 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:09,069 INFO L185 Difference]: Start difference. First operand has 77 places, 58 transitions, 719 flow. Second operand 8 states and 96 transitions. [2021-03-26 17:46:09,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 66 transitions, 901 flow [2021-03-26 17:46:09,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 66 transitions, 843 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-26 17:46:09,076 INFO L241 Difference]: Finished difference. Result has 82 places, 53 transitions, 605 flow [2021-03-26 17:46:09,076 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=605, PETRI_PLACES=82, PETRI_TRANSITIONS=53} [2021-03-26 17:46:09,076 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 65 predicate places. [2021-03-26 17:46:09,077 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:09,077 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 53 transitions, 605 flow [2021-03-26 17:46:09,077 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 53 transitions, 605 flow [2021-03-26 17:46:09,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 53 transitions, 605 flow [2021-03-26 17:46:09,085 INFO L129 PetriNetUnfolder]: 30/84 cut-off events. [2021-03-26 17:46:09,086 INFO L130 PetriNetUnfolder]: For 446/448 co-relation queries the response was YES. [2021-03-26 17:46:09,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 84 events. 30/84 cut-off events. For 446/448 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 280 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 416. Up to 26 conditions per place. [2021-03-26 17:46:09,087 INFO L142 LiptonReduction]: Number of co-enabled transitions 34 [2021-03-26 17:46:09,140 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 17:46:09,141 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 17:46:09,141 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-26 17:46:09,142 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 53 transitions, 618 flow [2021-03-26 17:46:09,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:09,142 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:09,142 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:09,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-03-26 17:46:09,355 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:09,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:09,356 INFO L82 PathProgramCache]: Analyzing trace with hash 766059515, now seen corresponding path program 2 times [2021-03-26 17:46:09,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:09,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739483390] [2021-03-26 17:46:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:09,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:09,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:46:09,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:09,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:09,406 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:09,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:09,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739483390] [2021-03-26 17:46:09,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099875383] [2021-03-26 17:46:09,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-26 17:46:09,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 17:46:09,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 17:46:09,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-26 17:46:09,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:09,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:09,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:09,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:09,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:09,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:09,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:09,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:09,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:09,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:09,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:09,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:09,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:09,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:09,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:09,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:09,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:09,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:09,508 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-03-26 17:46:09,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 17:46:09,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:09,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 17:46:09,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:46:09,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:09,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:09,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:09,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:46:09,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 17:46:09,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:09,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:46:09,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 17:46:09,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:09,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:09,542 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:09,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:09,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:09,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:09,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:09,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:09,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:46:09,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 17:46:09,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915632161] [2021-03-26 17:46:09,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 17:46:09,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:09,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 17:46:09,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-26 17:46:09,575 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2021-03-26 17:46:09,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 53 transitions, 618 flow. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:09,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:09,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2021-03-26 17:46:09,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:09,683 INFO L129 PetriNetUnfolder]: 44/109 cut-off events. [2021-03-26 17:46:09,684 INFO L130 PetriNetUnfolder]: For 585/585 co-relation queries the response was YES. [2021-03-26 17:46:09,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 109 events. 44/109 cut-off events. For 585/585 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 362 event pairs, 0 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 633. Up to 41 conditions per place. [2021-03-26 17:46:09,685 INFO L132 encePairwiseOnDemand]: 29/40 looper letters, 32 selfloop transitions, 28 changer transitions 6/68 dead transitions. [2021-03-26 17:46:09,685 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 68 transitions, 874 flow [2021-03-26 17:46:09,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 17:46:09,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 17:46:09,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 97 transitions. [2021-03-26 17:46:09,686 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.303125 [2021-03-26 17:46:09,686 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 97 transitions. [2021-03-26 17:46:09,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 97 transitions. [2021-03-26 17:46:09,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:09,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 97 transitions. [2021-03-26 17:46:09,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:09,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 40.0) internal successors, (360), 9 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:09,687 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 40.0) internal successors, (360), 9 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:09,687 INFO L185 Difference]: Start difference. First operand has 77 places, 53 transitions, 618 flow. Second operand 8 states and 97 transitions. [2021-03-26 17:46:09,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 68 transitions, 874 flow [2021-03-26 17:46:09,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 68 transitions, 769 flow, removed 18 selfloop flow, removed 11 redundant places. [2021-03-26 17:46:09,692 INFO L241 Difference]: Finished difference. Result has 77 places, 57 transitions, 650 flow [2021-03-26 17:46:09,692 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=650, PETRI_PLACES=77, PETRI_TRANSITIONS=57} [2021-03-26 17:46:09,692 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 60 predicate places. [2021-03-26 17:46:09,692 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:09,693 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 57 transitions, 650 flow [2021-03-26 17:46:09,693 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 57 transitions, 650 flow [2021-03-26 17:46:09,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 57 transitions, 650 flow [2021-03-26 17:46:09,700 INFO L129 PetriNetUnfolder]: 32/87 cut-off events. [2021-03-26 17:46:09,701 INFO L130 PetriNetUnfolder]: For 539/541 co-relation queries the response was YES. [2021-03-26 17:46:09,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 87 events. 32/87 cut-off events. For 539/541 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 299 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 440. Up to 29 conditions per place. [2021-03-26 17:46:09,702 INFO L142 LiptonReduction]: Number of co-enabled transitions 36 [2021-03-26 17:46:09,706 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:09,706 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:09,706 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 17:46:09,707 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 57 transitions, 650 flow [2021-03-26 17:46:09,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:09,707 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:09,707 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:09,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:09,920 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:09,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:09,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1395547724, now seen corresponding path program 1 times [2021-03-26 17:46:09,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:09,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953824940] [2021-03-26 17:46:09,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:09,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:09,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:09,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:09,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:09,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:09,965 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:09,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:09,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:09,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953824940] [2021-03-26 17:46:09,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359362094] [2021-03-26 17:46:09,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:10,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 17:46:10,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:10,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:10,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:10,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:10,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:10,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:10,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:10,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,027 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:10,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:10,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:10,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:46:10,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:10,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:10,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,060 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:10,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:10,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:10,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:10,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:10,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 17:46:10,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2021-03-26 17:46:10,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413941270] [2021-03-26 17:46:10,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:10,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:10,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:10,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-26 17:46:10,092 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2021-03-26 17:46:10,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 57 transitions, 650 flow. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:10,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:10,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2021-03-26 17:46:10,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:10,151 INFO L129 PetriNetUnfolder]: 40/103 cut-off events. [2021-03-26 17:46:10,152 INFO L130 PetriNetUnfolder]: For 586/586 co-relation queries the response was YES. [2021-03-26 17:46:10,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 103 events. 40/103 cut-off events. For 586/586 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 347 event pairs, 1 based on Foata normal form. 1/104 useless extension candidates. Maximal degree in co-relation 593. Up to 39 conditions per place. [2021-03-26 17:46:10,153 INFO L132 encePairwiseOnDemand]: 32/40 looper letters, 34 selfloop transitions, 18 changer transitions 11/65 dead transitions. [2021-03-26 17:46:10,153 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 65 transitions, 828 flow [2021-03-26 17:46:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 17:46:10,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 17:46:10,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 88 transitions. [2021-03-26 17:46:10,168 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3142857142857143 [2021-03-26 17:46:10,168 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 88 transitions. [2021-03-26 17:46:10,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 88 transitions. [2021-03-26 17:46:10,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:10,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 88 transitions. [2021-03-26 17:46:10,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:10,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 40.0) internal successors, (320), 8 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:10,169 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 40.0) internal successors, (320), 8 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:10,169 INFO L185 Difference]: Start difference. First operand has 75 places, 57 transitions, 650 flow. Second operand 7 states and 88 transitions. [2021-03-26 17:46:10,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 65 transitions, 828 flow [2021-03-26 17:46:10,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 65 transitions, 790 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-26 17:46:10,175 INFO L241 Difference]: Finished difference. Result has 79 places, 51 transitions, 582 flow [2021-03-26 17:46:10,175 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=582, PETRI_PLACES=79, PETRI_TRANSITIONS=51} [2021-03-26 17:46:10,175 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 62 predicate places. [2021-03-26 17:46:10,175 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:10,175 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 51 transitions, 582 flow [2021-03-26 17:46:10,175 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 51 transitions, 582 flow [2021-03-26 17:46:10,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 51 transitions, 582 flow [2021-03-26 17:46:10,182 INFO L129 PetriNetUnfolder]: 28/81 cut-off events. [2021-03-26 17:46:10,182 INFO L130 PetriNetUnfolder]: For 499/501 co-relation queries the response was YES. [2021-03-26 17:46:10,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 81 events. 28/81 cut-off events. For 499/501 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 257 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 398. Up to 27 conditions per place. [2021-03-26 17:46:10,183 INFO L142 LiptonReduction]: Number of co-enabled transitions 30 [2021-03-26 17:46:10,186 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:10,186 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:10,186 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 17:46:10,187 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 51 transitions, 582 flow [2021-03-26 17:46:10,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:10,187 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:10,187 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:10,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:10,401 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:10,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:10,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1660263823, now seen corresponding path program 1 times [2021-03-26 17:46:10,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:10,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027365029] [2021-03-26 17:46:10,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:10,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,453 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:10,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:10,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027365029] [2021-03-26 17:46:10,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144362358] [2021-03-26 17:46:10,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-26 17:46:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:10,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 17:46:10,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:10,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:10,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:10,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:10,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:10,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:10,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:10,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:10,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:10,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:10,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:10,540 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 17:46:10,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:46:10,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:10,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:10,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,559 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:10,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:10,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:10,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:10,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:10,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 17:46:10,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2021-03-26 17:46:10,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420446338] [2021-03-26 17:46:10,577 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:10,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:10,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:10,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-26 17:46:10,578 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2021-03-26 17:46:10,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 51 transitions, 582 flow. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:10,578 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:10,578 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2021-03-26 17:46:10,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:10,631 INFO L129 PetriNetUnfolder]: 40/103 cut-off events. [2021-03-26 17:46:10,631 INFO L130 PetriNetUnfolder]: For 597/597 co-relation queries the response was YES. [2021-03-26 17:46:10,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 103 events. 40/103 cut-off events. For 597/597 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 342 event pairs, 1 based on Foata normal form. 1/104 useless extension candidates. Maximal degree in co-relation 593. Up to 41 conditions per place. [2021-03-26 17:46:10,632 INFO L132 encePairwiseOnDemand]: 32/40 looper letters, 33 selfloop transitions, 24 changer transitions 4/63 dead transitions. [2021-03-26 17:46:10,632 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 63 transitions, 815 flow [2021-03-26 17:46:10,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 17:46:10,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 17:46:10,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 88 transitions. [2021-03-26 17:46:10,633 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3142857142857143 [2021-03-26 17:46:10,633 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 88 transitions. [2021-03-26 17:46:10,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 88 transitions. [2021-03-26 17:46:10,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:10,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 88 transitions. [2021-03-26 17:46:10,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:10,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 40.0) internal successors, (320), 8 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:10,638 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 40.0) internal successors, (320), 8 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:10,638 INFO L185 Difference]: Start difference. First operand has 75 places, 51 transitions, 582 flow. Second operand 7 states and 88 transitions. [2021-03-26 17:46:10,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 63 transitions, 815 flow [2021-03-26 17:46:10,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 63 transitions, 738 flow, removed 8 selfloop flow, removed 7 redundant places. [2021-03-26 17:46:10,644 INFO L241 Difference]: Finished difference. Result has 77 places, 53 transitions, 607 flow [2021-03-26 17:46:10,644 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=607, PETRI_PLACES=77, PETRI_TRANSITIONS=53} [2021-03-26 17:46:10,644 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 60 predicate places. [2021-03-26 17:46:10,645 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:10,645 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 53 transitions, 607 flow [2021-03-26 17:46:10,645 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 53 transitions, 607 flow [2021-03-26 17:46:10,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 53 transitions, 607 flow [2021-03-26 17:46:10,652 INFO L129 PetriNetUnfolder]: 31/86 cut-off events. [2021-03-26 17:46:10,652 INFO L130 PetriNetUnfolder]: For 493/495 co-relation queries the response was YES. [2021-03-26 17:46:10,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 86 events. 31/86 cut-off events. For 493/495 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 282 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 444. Up to 32 conditions per place. [2021-03-26 17:46:10,653 INFO L142 LiptonReduction]: Number of co-enabled transitions 28 [2021-03-26 17:46:10,656 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:10,656 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:10,657 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 17:46:10,657 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 53 transitions, 607 flow [2021-03-26 17:46:10,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:10,657 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:10,657 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:10,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-03-26 17:46:10,872 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:10,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:10,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1659370093, now seen corresponding path program 2 times [2021-03-26 17:46:10,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:10,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792863886] [2021-03-26 17:46:10,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:10,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,916 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:10,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:10,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792863886] [2021-03-26 17:46:10,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893743016] [2021-03-26 17:46:10,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:10,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 17:46:10,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 17:46:10,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 17:46:10,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:10,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:10,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:10,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:10,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:10,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:10,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:10,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:10,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:10,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:10,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,980 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:10,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:10,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:10,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:10,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:10,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:11,000 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 17:46:11,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:46:11,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:11,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:11,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:11,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:11,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:11,018 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:11,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:11,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:11,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:11,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:11,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:11,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:46:11,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-03-26 17:46:11,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316724544] [2021-03-26 17:46:11,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 17:46:11,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:11,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 17:46:11,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-26 17:46:11,041 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2021-03-26 17:46:11,043 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 53 transitions, 607 flow. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,043 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:11,043 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2021-03-26 17:46:11,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:11,155 INFO L129 PetriNetUnfolder]: 37/102 cut-off events. [2021-03-26 17:46:11,155 INFO L130 PetriNetUnfolder]: For 535/535 co-relation queries the response was YES. [2021-03-26 17:46:11,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 102 events. 37/102 cut-off events. For 535/535 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 341 event pairs, 0 based on Foata normal form. 2/104 useless extension candidates. Maximal degree in co-relation 590. Up to 37 conditions per place. [2021-03-26 17:46:11,156 INFO L132 encePairwiseOnDemand]: 31/40 looper letters, 25 selfloop transitions, 17 changer transitions 19/63 dead transitions. [2021-03-26 17:46:11,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 63 transitions, 794 flow [2021-03-26 17:46:11,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 17:46:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 17:46:11,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 99 transitions. [2021-03-26 17:46:11,158 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.309375 [2021-03-26 17:46:11,158 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 99 transitions. [2021-03-26 17:46:11,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 99 transitions. [2021-03-26 17:46:11,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:11,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 99 transitions. [2021-03-26 17:46:11,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 40.0) internal successors, (360), 9 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,162 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 40.0) internal successors, (360), 9 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,162 INFO L185 Difference]: Start difference. First operand has 76 places, 53 transitions, 607 flow. Second operand 8 states and 99 transitions. [2021-03-26 17:46:11,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 63 transitions, 794 flow [2021-03-26 17:46:11,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 63 transitions, 737 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-26 17:46:11,167 INFO L241 Difference]: Finished difference. Result has 79 places, 41 transitions, 446 flow [2021-03-26 17:46:11,167 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=446, PETRI_PLACES=79, PETRI_TRANSITIONS=41} [2021-03-26 17:46:11,167 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 62 predicate places. [2021-03-26 17:46:11,167 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:11,167 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 41 transitions, 446 flow [2021-03-26 17:46:11,167 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 41 transitions, 446 flow [2021-03-26 17:46:11,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 41 transitions, 446 flow [2021-03-26 17:46:11,172 INFO L129 PetriNetUnfolder]: 18/65 cut-off events. [2021-03-26 17:46:11,173 INFO L130 PetriNetUnfolder]: For 379/381 co-relation queries the response was YES. [2021-03-26 17:46:11,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 65 events. 18/65 cut-off events. For 379/381 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 191 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 304. Up to 22 conditions per place. [2021-03-26 17:46:11,173 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-26 17:46:11,182 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:11,182 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:11,182 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 17:46:11,182 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 41 transitions, 446 flow [2021-03-26 17:46:11,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,182 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:11,183 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:11,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:11,396 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:11,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:11,396 INFO L82 PathProgramCache]: Analyzing trace with hash 627531365, now seen corresponding path program 3 times [2021-03-26 17:46:11,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:11,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332445994] [2021-03-26 17:46:11,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:11,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:11,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:46:11,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:11,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:11,444 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:11,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:11,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332445994] [2021-03-26 17:46:11,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650171078] [2021-03-26 17:46:11,460 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-26 17:46:11,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 17:46:11,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 17:46:11,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-26 17:46:11,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:11,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:11,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:11,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:11,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:11,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:11,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:11,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:11,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:11,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:11,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:11,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:11,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:11,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:11,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:11,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:11,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:11,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:11,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:46:11,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 17:46:11,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:11,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:46:11,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 17:46:11,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:11,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:11,546 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 17:46:11,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:46:11,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:11,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:11,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:11,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:11,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:11,566 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:11,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:11,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:11,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:11,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:11,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:11,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:11,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:46:11,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 17:46:11,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871602469] [2021-03-26 17:46:11,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 17:46:11,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:11,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 17:46:11,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-26 17:46:11,586 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2021-03-26 17:46:11,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 41 transitions, 446 flow. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:11,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2021-03-26 17:46:11,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:11,662 INFO L129 PetriNetUnfolder]: 23/75 cut-off events. [2021-03-26 17:46:11,662 INFO L130 PetriNetUnfolder]: For 400/400 co-relation queries the response was YES. [2021-03-26 17:46:11,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 75 events. 23/75 cut-off events. For 400/400 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 230 event pairs, 0 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 414. Up to 34 conditions per place. [2021-03-26 17:46:11,663 INFO L132 encePairwiseOnDemand]: 32/40 looper letters, 26 selfloop transitions, 13 changer transitions 5/46 dead transitions. [2021-03-26 17:46:11,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 46 transitions, 566 flow [2021-03-26 17:46:11,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 17:46:11,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 17:46:11,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 90 transitions. [2021-03-26 17:46:11,665 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28125 [2021-03-26 17:46:11,665 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 90 transitions. [2021-03-26 17:46:11,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 90 transitions. [2021-03-26 17:46:11,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:11,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 90 transitions. [2021-03-26 17:46:11,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 40.0) internal successors, (360), 9 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,666 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 40.0) internal successors, (360), 9 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,666 INFO L185 Difference]: Start difference. First operand has 73 places, 41 transitions, 446 flow. Second operand 8 states and 90 transitions. [2021-03-26 17:46:11,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 46 transitions, 566 flow [2021-03-26 17:46:11,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 46 transitions, 491 flow, removed 7 selfloop flow, removed 14 redundant places. [2021-03-26 17:46:11,670 INFO L241 Difference]: Finished difference. Result has 67 places, 38 transitions, 373 flow [2021-03-26 17:46:11,670 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=373, PETRI_PLACES=67, PETRI_TRANSITIONS=38} [2021-03-26 17:46:11,670 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 50 predicate places. [2021-03-26 17:46:11,671 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:11,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 38 transitions, 373 flow [2021-03-26 17:46:11,671 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 38 transitions, 373 flow [2021-03-26 17:46:11,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 38 transitions, 373 flow [2021-03-26 17:46:11,676 INFO L129 PetriNetUnfolder]: 16/61 cut-off events. [2021-03-26 17:46:11,676 INFO L130 PetriNetUnfolder]: For 295/297 co-relation queries the response was YES. [2021-03-26 17:46:11,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 61 events. 16/61 cut-off events. For 295/297 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 176 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 256. Up to 20 conditions per place. [2021-03-26 17:46:11,676 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-26 17:46:11,677 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:11,677 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:11,677 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-26 17:46:11,678 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 38 transitions, 373 flow [2021-03-26 17:46:11,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,678 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:11,678 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:11,891 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:11,892 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:11,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:11,892 INFO L82 PathProgramCache]: Analyzing trace with hash 93477059, now seen corresponding path program 3 times [2021-03-26 17:46:11,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:11,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087662646] [2021-03-26 17:46:11,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:11,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:11,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:11,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:11,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:11,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:11,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087662646] [2021-03-26 17:46:11,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:11,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:11,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831657575] [2021-03-26 17:46:11,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 17:46:11,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:11,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 17:46:11,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 17:46:11,913 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2021-03-26 17:46:11,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 38 transitions, 373 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:11,913 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2021-03-26 17:46:11,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:11,959 INFO L129 PetriNetUnfolder]: 22/66 cut-off events. [2021-03-26 17:46:11,959 INFO L130 PetriNetUnfolder]: For 413/413 co-relation queries the response was YES. [2021-03-26 17:46:11,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 66 events. 22/66 cut-off events. For 413/413 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 171 event pairs, 4 based on Foata normal form. 2/68 useless extension candidates. Maximal degree in co-relation 347. Up to 27 conditions per place. [2021-03-26 17:46:11,960 INFO L132 encePairwiseOnDemand]: 34/40 looper letters, 22 selfloop transitions, 14 changer transitions 4/43 dead transitions. [2021-03-26 17:46:11,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 43 transitions, 509 flow [2021-03-26 17:46:11,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 17:46:11,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 17:46:11,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2021-03-26 17:46:11,961 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35 [2021-03-26 17:46:11,961 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 70 transitions. [2021-03-26 17:46:11,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 70 transitions. [2021-03-26 17:46:11,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:11,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 70 transitions. [2021-03-26 17:46:11,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,962 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,962 INFO L185 Difference]: Start difference. First operand has 62 places, 38 transitions, 373 flow. Second operand 5 states and 70 transitions. [2021-03-26 17:46:11,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 43 transitions, 509 flow [2021-03-26 17:46:11,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 43 transitions, 430 flow, removed 6 selfloop flow, removed 11 redundant places. [2021-03-26 17:46:11,965 INFO L241 Difference]: Finished difference. Result has 56 places, 37 transitions, 330 flow [2021-03-26 17:46:11,965 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=330, PETRI_PLACES=56, PETRI_TRANSITIONS=37} [2021-03-26 17:46:11,965 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 39 predicate places. [2021-03-26 17:46:11,965 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:11,965 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 37 transitions, 330 flow [2021-03-26 17:46:11,965 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 37 transitions, 330 flow [2021-03-26 17:46:11,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 37 transitions, 330 flow [2021-03-26 17:46:11,969 INFO L129 PetriNetUnfolder]: 16/51 cut-off events. [2021-03-26 17:46:11,969 INFO L130 PetriNetUnfolder]: For 216/218 co-relation queries the response was YES. [2021-03-26 17:46:11,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 51 events. 16/51 cut-off events. For 216/218 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 195. Up to 17 conditions per place. [2021-03-26 17:46:11,970 INFO L142 LiptonReduction]: Number of co-enabled transitions 4 [2021-03-26 17:46:11,970 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:11,970 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:11,971 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-26 17:46:11,971 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 37 transitions, 330 flow [2021-03-26 17:46:11,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,971 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:11,971 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:11,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-26 17:46:11,971 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:11,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:11,972 INFO L82 PathProgramCache]: Analyzing trace with hash 145224026, now seen corresponding path program 3 times [2021-03-26 17:46:11,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:11,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003983959] [2021-03-26 17:46:11,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:11,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:11,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:11,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:11,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:11,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:11,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:11,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:11,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003983959] [2021-03-26 17:46:11,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:11,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:11,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791610194] [2021-03-26 17:46:11,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 17:46:11,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:11,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 17:46:11,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 17:46:11,991 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2021-03-26 17:46:11,992 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 37 transitions, 330 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:11,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:11,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2021-03-26 17:46:11,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:12,025 INFO L129 PetriNetUnfolder]: 16/47 cut-off events. [2021-03-26 17:46:12,025 INFO L130 PetriNetUnfolder]: For 222/222 co-relation queries the response was YES. [2021-03-26 17:46:12,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 47 events. 16/47 cut-off events. For 222/222 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 89 event pairs, 1 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 229. Up to 35 conditions per place. [2021-03-26 17:46:12,026 INFO L132 encePairwiseOnDemand]: 34/40 looper letters, 25 selfloop transitions, 6 changer transitions 1/35 dead transitions. [2021-03-26 17:46:12,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 35 transitions, 378 flow [2021-03-26 17:46:12,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 17:46:12,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 17:46:12,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 76 transitions. [2021-03-26 17:46:12,027 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31666666666666665 [2021-03-26 17:46:12,027 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 76 transitions. [2021-03-26 17:46:12,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 76 transitions. [2021-03-26 17:46:12,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:12,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 76 transitions. [2021-03-26 17:46:12,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 40.0) internal successors, (280), 7 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,028 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 40.0) internal successors, (280), 7 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,028 INFO L185 Difference]: Start difference. First operand has 54 places, 37 transitions, 330 flow. Second operand 6 states and 76 transitions. [2021-03-26 17:46:12,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 35 transitions, 378 flow [2021-03-26 17:46:12,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 35 transitions, 333 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-03-26 17:46:12,029 INFO L241 Difference]: Finished difference. Result has 51 places, 34 transitions, 269 flow [2021-03-26 17:46:12,030 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=269, PETRI_PLACES=51, PETRI_TRANSITIONS=34} [2021-03-26 17:46:12,030 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 34 predicate places. [2021-03-26 17:46:12,030 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:12,030 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 34 transitions, 269 flow [2021-03-26 17:46:12,030 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 34 transitions, 269 flow [2021-03-26 17:46:12,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 34 transitions, 269 flow [2021-03-26 17:46:12,033 INFO L129 PetriNetUnfolder]: 15/44 cut-off events. [2021-03-26 17:46:12,033 INFO L130 PetriNetUnfolder]: For 131/133 co-relation queries the response was YES. [2021-03-26 17:46:12,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 44 events. 15/44 cut-off events. For 131/133 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 137. Up to 14 conditions per place. [2021-03-26 17:46:12,034 INFO L142 LiptonReduction]: Number of co-enabled transitions 4 [2021-03-26 17:46:12,035 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:12,035 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:12,036 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-26 17:46:12,036 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 269 flow [2021-03-26 17:46:12,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,036 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:12,036 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:12,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-26 17:46:12,036 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:12,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:12,037 INFO L82 PathProgramCache]: Analyzing trace with hash -2053434854, now seen corresponding path program 1 times [2021-03-26 17:46:12,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:12,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284080509] [2021-03-26 17:46:12,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:12,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:46:12,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:12,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284080509] [2021-03-26 17:46:12,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587262142] [2021-03-26 17:46:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:12,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-26 17:46:12,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:12,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:46:12,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:46:12,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 17:46:12,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:46:12,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:46:12,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,115 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-26 17:46:12,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:12,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:12,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:46:12,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-03-26 17:46:12,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348158506] [2021-03-26 17:46:12,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 17:46:12,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:12,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 17:46:12,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 17:46:12,123 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2021-03-26 17:46:12,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:12,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2021-03-26 17:46:12,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:12,172 INFO L129 PetriNetUnfolder]: 17/50 cut-off events. [2021-03-26 17:46:12,172 INFO L130 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES. [2021-03-26 17:46:12,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 50 events. 17/50 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 98 event pairs, 0 based on Foata normal form. 3/53 useless extension candidates. Maximal degree in co-relation 181. Up to 25 conditions per place. [2021-03-26 17:46:12,172 INFO L132 encePairwiseOnDemand]: 34/40 looper letters, 20 selfloop transitions, 17 changer transitions 0/40 dead transitions. [2021-03-26 17:46:12,172 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 40 transitions, 388 flow [2021-03-26 17:46:12,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 17:46:12,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 17:46:12,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 93 transitions. [2021-03-26 17:46:12,173 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33214285714285713 [2021-03-26 17:46:12,173 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 93 transitions. [2021-03-26 17:46:12,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 93 transitions. [2021-03-26 17:46:12,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:12,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 93 transitions. [2021-03-26 17:46:12,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 40.0) internal successors, (320), 8 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,174 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 40.0) internal successors, (320), 8 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,174 INFO L185 Difference]: Start difference. First operand has 47 places, 34 transitions, 269 flow. Second operand 7 states and 93 transitions. [2021-03-26 17:46:12,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 40 transitions, 388 flow [2021-03-26 17:46:12,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 40 transitions, 383 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 17:46:12,176 INFO L241 Difference]: Finished difference. Result has 53 places, 37 transitions, 339 flow [2021-03-26 17:46:12,177 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=339, PETRI_PLACES=53, PETRI_TRANSITIONS=37} [2021-03-26 17:46:12,177 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 36 predicate places. [2021-03-26 17:46:12,177 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:12,177 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 37 transitions, 339 flow [2021-03-26 17:46:12,177 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 37 transitions, 339 flow [2021-03-26 17:46:12,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 37 transitions, 339 flow [2021-03-26 17:46:12,181 INFO L129 PetriNetUnfolder]: 16/48 cut-off events. [2021-03-26 17:46:12,181 INFO L130 PetriNetUnfolder]: For 209/211 co-relation queries the response was YES. [2021-03-26 17:46:12,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 48 events. 16/48 cut-off events. For 209/211 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 98 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 187. Up to 17 conditions per place. [2021-03-26 17:46:12,181 INFO L142 LiptonReduction]: Number of co-enabled transitions 4 [2021-03-26 17:46:12,182 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:12,182 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:12,182 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-26 17:46:12,183 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 37 transitions, 339 flow [2021-03-26 17:46:12,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,183 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:12,183 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:12,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-03-26 17:46:12,404 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:12,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:12,404 INFO L82 PathProgramCache]: Analyzing trace with hash -648617389, now seen corresponding path program 1 times [2021-03-26 17:46:12,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:12,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977308281] [2021-03-26 17:46:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:12,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,461 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:12,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:12,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977308281] [2021-03-26 17:46:12,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655323908] [2021-03-26 17:46:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:12,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-26 17:46:12,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:12,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:12,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:12,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:12,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:12,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:12,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:12,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:12,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:46:12,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:12,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:12,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:12,559 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 17:46:12,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:46:12,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:12,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:12,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:12,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:12,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,597 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:12,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:12,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:12,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:12,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:12,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:12,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:46:12,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 17:46:12,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742677269] [2021-03-26 17:46:12,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 17:46:12,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:12,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 17:46:12,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-03-26 17:46:12,617 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2021-03-26 17:46:12,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 37 transitions, 339 flow. Second operand has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:12,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2021-03-26 17:46:12,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:12,722 INFO L129 PetriNetUnfolder]: 17/55 cut-off events. [2021-03-26 17:46:12,722 INFO L130 PetriNetUnfolder]: For 237/237 co-relation queries the response was YES. [2021-03-26 17:46:12,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 55 events. 17/55 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 126 event pairs, 1 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 247. Up to 20 conditions per place. [2021-03-26 17:46:12,723 INFO L132 encePairwiseOnDemand]: 31/40 looper letters, 23 selfloop transitions, 14 changer transitions 5/44 dead transitions. [2021-03-26 17:46:12,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 44 transitions, 492 flow [2021-03-26 17:46:12,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 17:46:12,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 17:46:12,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2021-03-26 17:46:12,724 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26944444444444443 [2021-03-26 17:46:12,724 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 97 transitions. [2021-03-26 17:46:12,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 97 transitions. [2021-03-26 17:46:12,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:12,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 97 transitions. [2021-03-26 17:46:12,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 40.0) internal successors, (400), 10 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,725 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 40.0) internal successors, (400), 10 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,725 INFO L185 Difference]: Start difference. First operand has 53 places, 37 transitions, 339 flow. Second operand 9 states and 97 transitions. [2021-03-26 17:46:12,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 44 transitions, 492 flow [2021-03-26 17:46:12,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 44 transitions, 448 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-03-26 17:46:12,727 INFO L241 Difference]: Finished difference. Result has 61 places, 36 transitions, 329 flow [2021-03-26 17:46:12,727 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=329, PETRI_PLACES=61, PETRI_TRANSITIONS=36} [2021-03-26 17:46:12,727 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 44 predicate places. [2021-03-26 17:46:12,727 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:12,727 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 36 transitions, 329 flow [2021-03-26 17:46:12,727 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 36 transitions, 329 flow [2021-03-26 17:46:12,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 36 transitions, 329 flow [2021-03-26 17:46:12,734 INFO L129 PetriNetUnfolder]: 14/45 cut-off events. [2021-03-26 17:46:12,734 INFO L130 PetriNetUnfolder]: For 194/196 co-relation queries the response was YES. [2021-03-26 17:46:12,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 45 events. 14/45 cut-off events. For 194/196 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 89 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 200. Up to 13 conditions per place. [2021-03-26 17:46:12,734 INFO L142 LiptonReduction]: Number of co-enabled transitions 4 [2021-03-26 17:46:12,735 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:12,735 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:12,735 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 17:46:12,736 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 36 transitions, 329 flow [2021-03-26 17:46:12,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:12,736 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:12,736 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:12,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-03-26 17:46:12,952 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:12,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:12,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1430187939, now seen corresponding path program 2 times [2021-03-26 17:46:12,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:12,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426137568] [2021-03-26 17:46:12,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:12,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:12,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:12,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:12,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:12,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:13,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:13,009 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:13,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:13,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426137568] [2021-03-26 17:46:13,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299298369] [2021-03-26 17:46:13,019 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-26 17:46:13,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 17:46:13,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 17:46:13,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-26 17:46:13,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:13,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:13,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:13,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:13,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:13,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:13,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:13,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 17:46:13,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:13,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:13,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:13,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:13,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:13,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:13,110 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 17:46:13,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:46:13,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:13,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:13,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:13,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:13,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:13,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:13,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,160 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:13,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:13,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:13,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:13,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:13,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:46:13,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 17:46:13,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804226550] [2021-03-26 17:46:13,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 17:46:13,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:13,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 17:46:13,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-03-26 17:46:13,199 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2021-03-26 17:46:13,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 36 transitions, 329 flow. Second operand has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:13,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:13,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2021-03-26 17:46:13,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:13,298 INFO L129 PetriNetUnfolder]: 15/51 cut-off events. [2021-03-26 17:46:13,299 INFO L130 PetriNetUnfolder]: For 226/226 co-relation queries the response was YES. [2021-03-26 17:46:13,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 51 events. 15/51 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 109 event pairs, 1 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 263. Up to 18 conditions per place. [2021-03-26 17:46:13,299 INFO L132 encePairwiseOnDemand]: 31/40 looper letters, 20 selfloop transitions, 15 changer transitions 4/41 dead transitions. [2021-03-26 17:46:13,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 41 transitions, 450 flow [2021-03-26 17:46:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 17:46:13,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 17:46:13,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2021-03-26 17:46:13,300 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26944444444444443 [2021-03-26 17:46:13,300 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 97 transitions. [2021-03-26 17:46:13,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 97 transitions. [2021-03-26 17:46:13,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:13,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 97 transitions. [2021-03-26 17:46:13,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:13,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 40.0) internal successors, (400), 10 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:13,301 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 40.0) internal successors, (400), 10 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:13,301 INFO L185 Difference]: Start difference. First operand has 58 places, 36 transitions, 329 flow. Second operand 9 states and 97 transitions. [2021-03-26 17:46:13,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 41 transitions, 450 flow [2021-03-26 17:46:13,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 41 transitions, 421 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-26 17:46:13,304 INFO L241 Difference]: Finished difference. Result has 61 places, 34 transitions, 319 flow [2021-03-26 17:46:13,304 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=319, PETRI_PLACES=61, PETRI_TRANSITIONS=34} [2021-03-26 17:46:13,304 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 44 predicate places. [2021-03-26 17:46:13,304 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:13,304 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 34 transitions, 319 flow [2021-03-26 17:46:13,304 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 34 transitions, 319 flow [2021-03-26 17:46:13,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 34 transitions, 319 flow [2021-03-26 17:46:13,307 INFO L129 PetriNetUnfolder]: 13/44 cut-off events. [2021-03-26 17:46:13,307 INFO L130 PetriNetUnfolder]: For 216/218 co-relation queries the response was YES. [2021-03-26 17:46:13,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 44 events. 13/44 cut-off events. For 216/218 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 82 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 192. Up to 12 conditions per place. [2021-03-26 17:46:13,308 INFO L142 LiptonReduction]: Number of co-enabled transitions 4 [2021-03-26 17:46:13,328 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:13,328 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 17:46:13,328 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-26 17:46:13,328 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 34 transitions, 324 flow [2021-03-26 17:46:13,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:13,329 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:13,329 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:13,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-03-26 17:46:13,550 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:13,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:13,550 INFO L82 PathProgramCache]: Analyzing trace with hash -786251809, now seen corresponding path program 3 times [2021-03-26 17:46:13,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:13,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310912798] [2021-03-26 17:46:13,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:13,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:13,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:13,600 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:13,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:13,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310912798] [2021-03-26 17:46:13,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283405646] [2021-03-26 17:46:13,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:13,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-26 17:46:13,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 17:46:13,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-26 17:46:13,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:13,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:13,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:13,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:13,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:13,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:13,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:13,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:13,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:13,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:13,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:13,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:46:13,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:13,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:13,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:13,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:13,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:13,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:13,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:13,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:13,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:13,707 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 17:46:13,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:46:13,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:13,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:13,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:13,724 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:13,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:13,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:13,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:13,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:13,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:13,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:13,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:13,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:46:13,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 17:46:13,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428916280] [2021-03-26 17:46:13,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 17:46:13,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:13,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 17:46:13,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-03-26 17:46:13,740 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2021-03-26 17:46:13,740 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 34 transitions, 324 flow. Second operand has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:13,740 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:13,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2021-03-26 17:46:13,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:13,856 INFO L129 PetriNetUnfolder]: 13/47 cut-off events. [2021-03-26 17:46:13,856 INFO L130 PetriNetUnfolder]: For 229/229 co-relation queries the response was YES. [2021-03-26 17:46:13,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 47 events. 13/47 cut-off events. For 229/229 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 99 event pairs, 1 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 240. Up to 12 conditions per place. [2021-03-26 17:46:13,856 INFO L132 encePairwiseOnDemand]: 31/41 looper letters, 18 selfloop transitions, 15 changer transitions 2/37 dead transitions. [2021-03-26 17:46:13,856 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 37 transitions, 414 flow [2021-03-26 17:46:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 17:46:13,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 17:46:13,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2021-03-26 17:46:13,857 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2601626016260163 [2021-03-26 17:46:13,857 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 96 transitions. [2021-03-26 17:46:13,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 96 transitions. [2021-03-26 17:46:13,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:13,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 96 transitions. [2021-03-26 17:46:13,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:13,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 41.0) internal successors, (410), 10 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:13,858 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 41.0) internal successors, (410), 10 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:13,859 INFO L185 Difference]: Start difference. First operand has 58 places, 34 transitions, 324 flow. Second operand 9 states and 96 transitions. [2021-03-26 17:46:13,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 37 transitions, 414 flow [2021-03-26 17:46:13,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 37 transitions, 371 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-26 17:46:13,861 INFO L241 Difference]: Finished difference. Result has 59 places, 32 transitions, 292 flow [2021-03-26 17:46:13,861 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=292, PETRI_PLACES=59, PETRI_TRANSITIONS=32} [2021-03-26 17:46:13,862 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 42 predicate places. [2021-03-26 17:46:13,863 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:13,863 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 32 transitions, 292 flow [2021-03-26 17:46:13,863 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 32 transitions, 292 flow [2021-03-26 17:46:13,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 32 transitions, 292 flow [2021-03-26 17:46:13,866 INFO L129 PetriNetUnfolder]: 12/41 cut-off events. [2021-03-26 17:46:13,866 INFO L130 PetriNetUnfolder]: For 199/201 co-relation queries the response was YES. [2021-03-26 17:46:13,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 41 events. 12/41 cut-off events. For 199/201 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 175. Up to 11 conditions per place. [2021-03-26 17:46:13,867 INFO L142 LiptonReduction]: Number of co-enabled transitions 2 [2021-03-26 17:46:13,867 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:13,867 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:13,867 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-26 17:46:13,868 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 32 transitions, 292 flow [2021-03-26 17:46:13,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:13,868 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:13,868 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:14,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-03-26 17:46:14,084 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:14,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:14,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1951099560, now seen corresponding path program 1 times [2021-03-26 17:46:14,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:14,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119298888] [2021-03-26 17:46:14,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:14,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:14,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:14,131 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:14,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:14,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119298888] [2021-03-26 17:46:14,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644617174] [2021-03-26 17:46:14,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:14,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-26 17:46:14,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:14,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:14,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:14,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:14,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:14,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:14,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:14,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:14,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:14,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:14,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:14,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:14,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 17:46:14,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:14,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 17:46:14,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:14,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:14,221 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 17:46:14,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:46:14,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:14,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:14,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,236 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:14,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:14,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:14,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:14,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:14,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:46:14,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 17:46:14,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381608241] [2021-03-26 17:46:14,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 17:46:14,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:14,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 17:46:14,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-26 17:46:14,252 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2021-03-26 17:46:14,252 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 32 transitions, 292 flow. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:14,252 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:14,252 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2021-03-26 17:46:14,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:14,335 INFO L129 PetriNetUnfolder]: 13/46 cut-off events. [2021-03-26 17:46:14,335 INFO L130 PetriNetUnfolder]: For 219/219 co-relation queries the response was YES. [2021-03-26 17:46:14,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 46 events. 13/46 cut-off events. For 219/219 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 1 based on Foata normal form. 2/48 useless extension candidates. Maximal degree in co-relation 234. Up to 13 conditions per place. [2021-03-26 17:46:14,335 INFO L132 encePairwiseOnDemand]: 31/41 looper letters, 12 selfloop transitions, 6 changer transitions 17/37 dead transitions. [2021-03-26 17:46:14,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 37 transitions, 405 flow [2021-03-26 17:46:14,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 17:46:14,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 17:46:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 87 transitions. [2021-03-26 17:46:14,336 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2652439024390244 [2021-03-26 17:46:14,336 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 87 transitions. [2021-03-26 17:46:14,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 87 transitions. [2021-03-26 17:46:14,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:14,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 87 transitions. [2021-03-26 17:46:14,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:14,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 41.0) internal successors, (369), 9 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:14,338 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 41.0) internal successors, (369), 9 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:14,338 INFO L185 Difference]: Start difference. First operand has 57 places, 32 transitions, 292 flow. Second operand 8 states and 87 transitions. [2021-03-26 17:46:14,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 37 transitions, 405 flow [2021-03-26 17:46:14,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 37 transitions, 350 flow, removed 5 selfloop flow, removed 11 redundant places. [2021-03-26 17:46:14,340 INFO L241 Difference]: Finished difference. Result has 55 places, 20 transitions, 138 flow [2021-03-26 17:46:14,340 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=138, PETRI_PLACES=55, PETRI_TRANSITIONS=20} [2021-03-26 17:46:14,340 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 38 predicate places. [2021-03-26 17:46:14,340 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:14,340 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 20 transitions, 138 flow [2021-03-26 17:46:14,340 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 20 transitions, 138 flow [2021-03-26 17:46:14,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 20 transitions, 138 flow [2021-03-26 17:46:14,342 INFO L129 PetriNetUnfolder]: 4/21 cut-off events. [2021-03-26 17:46:14,342 INFO L130 PetriNetUnfolder]: For 81/83 co-relation queries the response was YES. [2021-03-26 17:46:14,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 21 events. 4/21 cut-off events. For 81/83 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 73. Up to 5 conditions per place. [2021-03-26 17:46:14,342 INFO L142 LiptonReduction]: Number of co-enabled transitions 2 [2021-03-26 17:46:14,369 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:14,370 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 17:46:14,370 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-26 17:46:14,370 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 19 transitions, 136 flow [2021-03-26 17:46:14,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:14,370 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:14,371 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:14,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:14,580 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:14,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:14,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1925627617, now seen corresponding path program 4 times [2021-03-26 17:46:14,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:14,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934165615] [2021-03-26 17:46:14,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:14,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:14,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:14,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:14,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:14,631 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:14,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:14,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934165615] [2021-03-26 17:46:14,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383074560] [2021-03-26 17:46:14,640 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:46:14,657 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-26 17:46:14,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 17:46:14,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-26 17:46:14,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:46:14,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:14,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:14,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:14,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:14,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:14,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:14,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:46:14,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 17:46:14,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:14,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:14,696 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-26 17:46:14,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:46:14,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:14,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:14,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:46:14,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 17:46:14,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:14,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:14,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:14,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:14,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:46:14,749 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-26 17:46:14,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:14,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:46:14,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:46:14,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 17:46:14,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:14,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:14,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:14,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:46:14,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 17:46:14,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544804486] [2021-03-26 17:46:14,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 17:46:14,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:14,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 17:46:14,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-03-26 17:46:14,765 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2021-03-26 17:46:14,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 19 transitions, 136 flow. Second operand has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:14,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:14,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2021-03-26 17:46:14,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:14,841 INFO L129 PetriNetUnfolder]: 5/21 cut-off events. [2021-03-26 17:46:14,841 INFO L130 PetriNetUnfolder]: For 86/86 co-relation queries the response was YES. [2021-03-26 17:46:14,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 21 events. 5/21 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 1 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 97. Up to 6 conditions per place. [2021-03-26 17:46:14,842 INFO L132 encePairwiseOnDemand]: 32/42 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2021-03-26 17:46:14,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 18 transitions, 164 flow [2021-03-26 17:46:14,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 17:46:14,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 17:46:14,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 87 transitions. [2021-03-26 17:46:14,843 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23015873015873015 [2021-03-26 17:46:14,843 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 87 transitions. [2021-03-26 17:46:14,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 87 transitions. [2021-03-26 17:46:14,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:14,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 87 transitions. [2021-03-26 17:46:14,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:14,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 42.0) internal successors, (420), 10 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) [2021-03-26 17:46:14,844 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 42.0) internal successors, (420), 10 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) [2021-03-26 17:46:14,844 INFO L185 Difference]: Start difference. First operand has 45 places, 19 transitions, 136 flow. Second operand 9 states and 87 transitions. [2021-03-26 17:46:14,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 18 transitions, 164 flow [2021-03-26 17:46:14,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 18 transitions, 126 flow, removed 8 selfloop flow, removed 12 redundant places. [2021-03-26 17:46:14,845 INFO L241 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2021-03-26 17:46:14,845 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2021-03-26 17:46:14,845 INFO L343 CegarLoopForPetriNet]: 17 programPoint places, 23 predicate places. [2021-03-26 17:46:14,845 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:14,845 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-26 17:46:14,845 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-26 17:46:14,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 17:46:14,846 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 17:46:14,846 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 17:46:14,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 17:46:14,846 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 17:46:14,846 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:14,846 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:14,846 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 17:46:14,850 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 17:46:14,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:46:15,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-03-26 17:46:15,059 INFO L202 PluginConnector]: Adding new model easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 05:46:15 BasicIcfg [2021-03-26 17:46:15,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 17:46:15,059 INFO L168 Benchmark]: Toolchain (without parser) took 10070.96 ms. Allocated memory was 255.9 MB in the beginning and 423.6 MB in the end (delta: 167.8 MB). Free memory was 236.6 MB in the beginning and 160.4 MB in the end (delta: 76.2 MB). Peak memory consumption was 244.4 MB. Max. memory is 16.0 GB. [2021-03-26 17:46:15,060 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.45 ms. Allocated memory is still 255.9 MB. Free memory was 237.7 MB in the beginning and 237.5 MB in the end (delta: 160.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 17:46:15,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.07 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 235.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 17:46:15,060 INFO L168 Benchmark]: Boogie Preprocessor took 15.36 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 234.0 MB in the end (delta: 879.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 17:46:15,060 INFO L168 Benchmark]: RCFGBuilder took 185.76 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 240.1 MB in the end (delta: -6.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. [2021-03-26 17:46:15,060 INFO L168 Benchmark]: TraceAbstraction took 9842.84 ms. Allocated memory was 255.9 MB in the beginning and 423.6 MB in the end (delta: 167.8 MB). Free memory was 239.7 MB in the beginning and 160.4 MB in the end (delta: 79.3 MB). Peak memory consumption was 247.1 MB. Max. memory is 16.0 GB. [2021-03-26 17:46:15,060 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 0.45 ms. Allocated memory is still 255.9 MB. Free memory was 237.7 MB in the beginning and 237.5 MB in the end (delta: 160.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.07 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 235.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.36 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 234.0 MB in the end (delta: 879.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 185.76 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 240.1 MB in the end (delta: -6.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 9842.84 ms. Allocated memory was 255.9 MB in the beginning and 423.6 MB in the end (delta: 167.8 MB). Free memory was 239.7 MB in the beginning and 160.4 MB in the end (delta: 79.3 MB). Peak memory consumption was 247.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 152.4ms, 24 PlacesBefore, 17 PlacesAfterwards, 19 TransitionsBefore, 12 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 38 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 38, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 38, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 38, unknown conditional: 0, unknown unconditional: 38] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.3ms, 24 PlacesBefore, 22 PlacesAfterwards, 21 TransitionsBefore, 20 TransitionsAfterwards, 42 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive 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: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.4ms, 31 PlacesBefore, 30 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 73.5ms, 39 PlacesBefore, 38 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 38 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.3ms, 38 PlacesBefore, 38 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.5ms, 44 PlacesBefore, 43 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 38 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.5ms, 43 PlacesBefore, 43 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4ms, 45 PlacesBefore, 45 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.0ms, 47 PlacesBefore, 47 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.7ms, 49 PlacesBefore, 47 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 42 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.5ms, 52 PlacesBefore, 51 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 42 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.5ms, 55 PlacesBefore, 53 PlacesAfterwards, 44 TransitionsBefore, 43 TransitionsAfterwards, 42 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.3ms, 54 PlacesBefore, 54 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.0ms, 55 PlacesBefore, 55 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.3ms, 60 PlacesBefore, 60 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.7ms, 64 PlacesBefore, 64 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 85.6ms, 73 PlacesBefore, 72 PlacesAfterwards, 58 TransitionsBefore, 58 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive 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: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 40, Positive conditional cache size: 2, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.4ms, 78 PlacesBefore, 77 PlacesAfterwards, 58 TransitionsBefore, 58 TransitionsAfterwards, 34 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 40, Positive conditional cache size: 2, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.7ms, 82 PlacesBefore, 77 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 34 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive 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: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.3ms, 77 PlacesBefore, 75 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1ms, 79 PlacesBefore, 75 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 30 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.5ms, 77 PlacesBefore, 76 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.4ms, 79 PlacesBefore, 73 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 18 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6ms, 67 PlacesBefore, 62 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 18 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2ms, 56 PlacesBefore, 54 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1ms, 51 PlacesBefore, 47 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0ms, 53 PlacesBefore, 53 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1ms, 61 PlacesBefore, 58 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.8ms, 61 PlacesBefore, 58 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6ms, 59 PlacesBefore, 57 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.3ms, 55 PlacesBefore, 45 PlacesAfterwards, 20 TransitionsBefore, 19 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9ms, 40 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 41, Positive conditional cache size: 3, Positive unconditional cache size: 38, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - PositiveResult [Line: 43]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 9766.1ms, OverallIterations: 31, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2618.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 201.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 270 SDtfs, 286 SDslu, 471 SDs, 0 SdLazy, 2101 SolverSat, 188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1026.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 359 GetRequests, 88 SyntacticMatches, 26 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 2049.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=719occurred in iteration=17, InterpolantAutomatonStates: 205, 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: 48.4ms SsaConstructionTime, 178.2ms SatisfiabilityAnalysisTime, 2828.2ms InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 437 ConstructedInterpolants, 0 QuantifiedInterpolants, 2778 SizeOfPredicates, 34 NumberOfNonLiveVariables, 445 ConjunctsInSsa, 171 ConjunctsInUnsatCore, 44 InterpolantComputations, 20 PerfectInterpolantSequences, 10/44 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...